Common Weakness Enumeration
CWE-22
Allowed-with-ReviewImproper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Abstraction: Base · Status: Stable
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
5557 vulnerabilities reference this CWE, most recent first.
CVE-2026-118758 (GCVE-0-2026-118758)
Vulnerability from cvelistv5 – Published: 2026-10-29 16:12 – Updated: 2026-10-29 20:18
VLAI
EPSS
VEX
Title
Kubeflow: Unauthenticated path traversal to arbitrary file read on ml-pipeline-ui via the volume artifact source
Summary
Kubeflow Pipelines enables users to build and deploy portable, scalable machine learning workflows. Prior to 2.18.0, the volume artifact handler for GET /artifacts/get?source=volume did not confine a caller-supplied file path to the selected volume. A caller who can reach the route and identify an existing mounted volume can use path traversal to read files outside that volume when the artifact-serving process can read them. The frontend pod serves the request when artifact proxying is disabled, while the selected namespace's artifact-service pod serves it when proxying is enabled. A deployment with authentication disabled requires no application credentials; in multi-user deployments, the caller ordinarily must be authorized for the supplied namespace. This issue is fixed in version 2.18.0.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 20:18 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/kubeflow/pipelines/security/ad… | x_refsource_CONFIRM |
| https://github.com/kubeflow/pipelines/pull/13677 | x_refsource_MISC |
| https://github.com/kubeflow/pipelines/commit/4d9b… | x_refsource_MISC |
| https://github.com/kubeflow/pipelines/blob/2.18.0… | x_refsource_MISC |
| https://github.com/kubeflow/pipelines/releases/ta… | x_refsource_MISC |
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CVE-2026-118756 (GCVE-0-2026-118756)
Vulnerability from cvelistv5 – Published: 2026-10-28 21:11 – Updated: 2026-11-05 16:26
VLAI
EPSS
VEX
Title
gopass before 1.17.0 Path Traversal via fs Storage Prune and IsDir
Summary
gopass before 1.17.0 contains a path traversal vulnerability in the filesystem storage backend that allows attackers to delete directories outside the password store via ../ entry names in Prune and IsDir. Collaborators with write access to a shared git-synced store can introduce crafted entries, causing a victim's recursive gopass rm -r to delete arbitrary directory trees.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 16:26 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/gopasspw/gopass/security/advis… | vendor-advisory |
| https://github.com/gopasspw/gopass/commit/4f76ed5… | patch |
| https://github.com/gopasspw/gopass/releases/tag/v1.17.0 | release-notes |
| https://github.com/gopasspw/gopass/blob/v1.16.1/i… | technical-description |
| https://www.vulncheck.com/advisories/gopass-befor… | third-party-advisory |
Date Public
2026-08-12 00:00
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CVE-2026-118680 (GCVE-0-2026-118680)
Vulnerability from cvelistv5 – Published: 2026-10-28 18:59 – Updated: 2026-11-02 20:34
VLAI
EPSS
VEX
Title
SiYuan 3.8.7 through 3.8.8 Path Traversal via GLOBALROOT Alias
Summary
SiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key into the publicly served assets directory.
Severity
4.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 20:33 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/siyuan-note/siyuan/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/siyuan-3.8.7… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| siyuan-note | siyuan |
Affected:
3.8.7 , ≤ 3.8.8
(semver)
cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:* |
Date Public
2026-10-13 00:00
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CVE-2026-118667 (GCVE-0-2026-118667)
Vulnerability from cvelistv5 – Published: 2026-10-28 20:51 – Updated: 2026-10-29 18:26
VLAI
EPSS
VEX
Title
LangGraph: Unencoded identifiers in LangGraph SDK v3 streaming can redirect authenticated GET requests
Summary
LangGraph Python SDK is used to connect to running LangGraph API servers, manage assistants, threads and stream runs from Python applications. From langgraph-sdk 0.4.0 until 0.4.6, and from langgraph 1.2.3 until 1.2.14 when RemoteGraph v3 streaming uses an affected langgraph-sdk version, the synchronous and asynchronous v3 stream get_tree and _fetch_state helpers interpolate caller-controlled assistant_id and thread_id values into authenticated GET request paths without using _quote_path_param. Relative path segments can therefore be normalized into another readable path on the configured server while retaining authentication headers. This issue is fixed in langgraph-sdk 0.4.6 and langgraph 1.2.14.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 18:25 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/langchain-ai/langgraph/securit… | x_refsource_CONFIRM |
| https://github.com/langchain-ai/langgraph/pull/9213 | x_refsource_MISC |
| https://github.com/langchain-ai/langgraph/commit/… | x_refsource_MISC |
| https://github.com/langchain-ai/langgraph/release… | x_refsource_MISC |
| https://github.com/langchain-ai/langgraph/release… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| langchain-ai | langgraph |
Affected:
>= 1.2.3, < 1.2.14
|
|
| langchain-ai | langgraph-sdk |
Affected:
>= 0.4.0, < 0.4.6
|
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CVE-2026-118654 (GCVE-0-2026-118654)
Vulnerability from cvelistv5 – Published: 2026-10-28 19:59 – Updated: 2026-11-02 20:43
VLAI
EPSS
VEX
Title
Echo static file middleware route protection bypass via encoded dot-dot traversal
Summary
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, Echo's static file handlers can normalize dot segments after route matching and serve a file through a public static route even though the corresponding direct path is protected by route-level middleware. An unauthenticated attacker can read files that an application intended to protect with route-level middleware, when those files are also reachable through a static filesystem mount after path normalization. This vulnerability is the result of an incomplete fix for CVE-2026-55677. This issue is fixed in 4.16.0 and 5.4.0.
Severity
5.9 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 20:43 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
GitHub_M
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/labstack/echo/security/advisor… | x_refsource_CONFIRM |
| https://github.com/labstack/echo/commit/b838391e2… | x_refsource_MISC |
| https://github.com/labstack/echo/commit/fc410094b… | x_refsource_MISC |
| https://github.com/labstack/echo/releases/tag/v4.16.0 | x_refsource_MISC |
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Impacted products
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CVE-2026-118619 (GCVE-0-2026-118619)
Vulnerability from cvelistv5 – Published: 2026-10-28 16:54 – Updated: 2026-11-05 17:05
VLAI
EPSS
VEX
Title
Ultralytics Google Drive Download Path Traversal Remote Code Execution Vulnerability
Summary
Ultralytics Google Drive Download Path Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ultralytics. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of downloads from Google Drive. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current process. Was ZDI-CAN-32376.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 17:04 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
zdi
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ultralytics | Ultralytics |
Affected:
8.4.103
|
Date Public
2026-10-28 16:31
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CVE-2026-118038 (GCVE-0-2026-118038)
Vulnerability from cvelistv5 – Published: 2026-10-28 12:27 – Updated: 2026-11-06 18:35
VLAI
EPSS
VEX
Title
Path Traversal in Telerik Document Processing Libraries AI Agent Tools
Summary
In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, a path traversal vulnerability in the Convert and Merge AI agent tools allows an authenticated attacker with low privileges who can supply tool arguments to read files outside the configured output directory, and to overwrite such files where they are writable, via relative file paths that resolve against the process current working directory.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 18:16 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
ProgressSoftware
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://docs.telerik.com/devtools/document-proces… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Progress Software | Telerik Document Processing Libraries |
Affected:
2026.1.210 , < 2026.3.1027
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CVE-2026-117566 (GCVE-0-2026-117566)
Vulnerability from cvelistv5 – Published: 2026-10-27 13:07 – Updated: 2026-11-02 15:59
VLAI
EPSS
VEX
Title
EasyImages2.0 through 2.8.6 Unauthenticated Path Traversal via down.php, thumb.php and info.php
Summary
EasyImages2.0 through 2.8.6 contains an unauthenticated path traversal vulnerability in app/down.php, app/thumb.php and app/info.php that allows reading files outside the upload directory. Attackers can supply ../ sequences in the dw, history or img parameters to read files with allowed upload extensions from the server.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 15:59 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
VulnCheck
CNA
References
5 references
| URL | Tags |
|---|---|
| https://github.com/icret/EasyImages2.0/issues/286 | issue-tracking |
| https://github.com/icret/EasyImages2.0 | product |
| https://github.com/icret/EasyImages2.0/commit/e33… | patch |
| https://github.com/icret/EasyImages2.0/blob/2.8.6… | technical-description |
| https://www.vulncheck.com/advisories/easyimages2-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| icret | EasyImages2.0 |
Affected:
0 , ≤ 2.8.6
(semver)
cpe:2.3:a:easyimages2.0_project:easyimages2.0:*:*:*:*:*:*:*:* |
Date Public
2026-10-22 00:00
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CVE-2026-117518 (GCVE-0-2026-117518)
Vulnerability from cvelistv5 – Published: 2026-11-02 10:39 – Updated: 2026-11-02 16:58
VLAI
EPSS
VEX
Title
@fastify/reply-from vulnerable to path traversal via backslash dot-segment prefix escape
Summary
@fastify/reply-from is a Fastify plugin that forwards requests to an upstream HTTP server. In versions up to and including 12.8.0, the plugin validated proxy paths against forward-slash dot-segments only and then built the target with the WHATWG URL parser, which normalizes a backslash and its percent-encoded form to a forward slash on the http, https, ws, and wss schemes. A path that uses backslash dot-segments therefore bypasses the traversal check and resolves to a different upstream path, so an application that scopes proxying to an upstream prefix, or relies on route guards in front of the forwarding call, can have an unauthenticated request escape the intended prefix and reach other upstream endpoints. The resulting access to unintended upstream resources is primarily a confidentiality impact with limited integrity impact. The issue is fixed in @fastify/reply-from 12.8.1, where the path is normalized and any segment resolving to a single or double dot, along with control characters and ambiguous whitespace, is rejected before the URL is constructed, and users should upgrade to 12.8.1 or later. There is no workaround other than upgrading.
Severity
8.2 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 16:57 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
openjs
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| @fastify/reply-from | @fastify/reply-from |
Affected:
0 , < 12.8.1
(semver)
Unaffected: 12.8.1 (semver) |
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CVE-2026-117510 (GCVE-0-2026-117510)
Vulnerability from cvelistv5 – Published: 2026-10-27 15:45 – Updated: 2026-11-02 19:26
VLAI
EPSS
VEX
Title
Dexmal Dexbotic gr00tsonic Checkpoint Loader gr00tsonic_arch.py load_pretrained_gr00t path traversal
Summary
A flaw has been found in Dexmal Dexbotic up to 0.2.0. Affected by this vulnerability is the function load_pretrained_gr00t of the file dexbotic/model/gr00tsonic/gr00tsonic_arch.py of the component gr00tsonic Checkpoint Loader. This manipulation of the argument weight_map causes path traversal. Remote exploitation of the attack is possible. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 19:25 UTC
CWE
- CWE-22 - Path Traversal
Assigner
VulDB
CNA
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/427076 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/427076/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-117510 | third-party-advisory |
| https://vuldb.com/submit/1024532 | third-party-advisory |
| https://github.com/dexmal/dexbotic/issues/103 | issue-tracking |
| https://github.com/user-attachments/files/3330268… | exploit |
| https://github.com/dexmal/dexbotic/ | product |
Impacted products
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Mitigation MIT-5.1
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- When validating filenames, use stringent allowlists that limit the character set to be used. If feasible, only allow a single "." character in the filename to avoid weaknesses such as CWE-23, and exclude directory separators such as "/" to avoid CWE-36. Use a list of allowable file extensions, which will help to avoid CWE-434.
- Do not rely exclusively on a filtering mechanism that removes potentially dangerous characters. This is equivalent to a denylist, which may be incomplete (CWE-184). For example, filtering "/" is insufficient protection if the filesystem also supports the use of "\" as a directory separator. Another possible error could occur when the filtering is applied in a way that still produces dangerous data (CWE-182). For example, if "../" sequences are removed from the ".../...//" string in a sequential fashion, two instances of "../" would be removed from the original string, but the remaining characters would still form the "../" string.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-20.1
Implementation
Strategy: Input Validation
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
- Use a built-in path canonicalization function (such as realpath() in C) that produces the canonical version of the pathname, which effectively removes ".." sequences and symbolic links (CWE-23, CWE-59). This includes:
- realpath() in C
- getCanonicalPath() in Java
- GetFullPath() in ASP.NET
- realpath() or abs_path() in Perl
- realpath() in PHP
Mitigation MIT-4
Architecture and Design
Strategy: Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Mitigation MIT-29
Operation
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
Mitigation MIT-17
Architecture and Design
Operation
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
Mitigation MIT-21.1
Architecture and Design
Strategy: Enforcement by Conversion
- When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
- For example, ID 1 could map to "inbox.txt" and ID 2 could map to "profile.txt". Features such as the ESAPI AccessReferenceMap [REF-185] provide this capability.
Mitigation MIT-22
Architecture and Design
Operation
Strategy: Sandbox or Jail
- Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
- OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
- This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
- Be careful to avoid CWE-243 and other weaknesses related to jails.
Mitigation MIT-34
Architecture and Design
Operation
Strategy: Attack Surface Reduction
- Store library, include, and utility files outside of the web document root, if possible. Otherwise, store them in a separate directory and use the web server's access control capabilities to prevent attackers from directly requesting them. One common practice is to define a fixed constant in each calling program, then check for the existence of the constant in the library/include file; if the constant does not exist, then the file was directly requested, and it can exit immediately.
- This significantly reduces the chance of an attacker being able to bypass any protection mechanisms that are in the base program but not in the include files. It will also reduce the attack surface.
Mitigation MIT-39
Implementation
- Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
- If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
- Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
- In the context of path traversal, error messages which disclose path information can help attackers craft the appropriate attack strings to move through the file system hierarchy.
Mitigation MIT-16
Operation
Implementation
Strategy: Environment Hardening
When using PHP, configure the application so that it does not use register_globals. During implementation, develop the application so that it does not rely on this feature, but be wary of implementing a register_globals emulation that is subject to weaknesses such as CWE-95, CWE-621, and similar issues.
CAPEC-126: Path Traversal
An adversary uses path manipulation methods to exploit insufficient input validation of a target to obtain access to data that should be not be retrievable by ordinary well-formed requests. A typical variety of this attack involves specifying a path to a desired file together with dot-dot-slash characters, resulting in the file access API or function traversing out of the intended directory structure and into the root file system. By replacing or modifying the expected path information the access function or API retrieves the file desired by the attacker. These attacks either involve the attacker providing a complete path to a targeted file or using control characters (e.g. path separators (/ or \) and/or dots (.)) to reach desired directories or files.
CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic
This attack targets the encoding of the URL combined with the encoding of the slash characters. An attacker can take advantage of the multiple ways of encoding a URL and abuse the interpretation of the URL. A URL may contain special character that need special syntax handling in order to be interpreted. Special characters are represented using a percentage character followed by two digits representing the octet code of the original character (%HEX-CODE). For instance US-ASCII space character would be represented with %20. This is often referred as escaped ending or percent-encoding. Since the server decodes the URL from the requests, it may restrict the access to some URL paths by validating and filtering out the URL requests it received. An attacker will try to craft an URL with a sequence of special characters which once interpreted by the server will be equivalent to a forbidden URL. It can be difficult to protect against this attack since the URL can contain other format of encoding such as UTF-8 encoding, Unicode-encoding, etc.
CAPEC-76: Manipulating Web Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
CAPEC-78: Using Escaped Slashes in Alternate Encoding
This attack targets the use of the backslash in alternate encoding. An adversary can provide a backslash as a leading character and causes a parser to believe that the next character is special. This is called an escape. By using that trick, the adversary tries to exploit alternate ways to encode the same character which leads to filter problems and opens avenues to attack.
CAPEC-79: Using Slashes in Alternate Encoding
This attack targets the encoding of the Slash characters. An adversary would try to exploit common filtering problems related to the use of the slashes characters to gain access to resources on the target host. Directory-driven systems, such as file systems and databases, typically use the slash character to indicate traversal between directories or other container components. For murky historical reasons, PCs (and, as a result, Microsoft OSs) choose to use a backslash, whereas the UNIX world typically makes use of the forward slash. The schizophrenic result is that many MS-based systems are required to understand both forms of the slash. This gives the adversary many opportunities to discover and abuse a number of common filtering problems. The goal of this pattern is to discover server software that only applies filters to one version, but not the other.