Common Weakness Enumeration
CWE-179
AllowedIncorrect Behavior Order: Early Validation
Abstraction: Base · Status: Incomplete
The product validates input before applying protection mechanisms that modify the input, which could allow an attacker to bypass the validation via dangerous inputs that only arise after the modification.
6 vulnerabilities reference this CWE, most recent first.
CVE-2026-90813 (GCVE-0-2026-90813)
Vulnerability from cvelistv5 – Published: 2026-09-14 19:15 – Updated: 2026-09-14 19:33
VLAI
EPSS
VEX
Title
cosmicstack-labs mercury-agent Shell Command Execution permissions.ts checkShellCommand validate before canonicalize
Summary
A vulnerability was detected in cosmicstack-labs mercury-agent up to 1.1.13. Affected is the function checkShellCommand of the file src/capabilities/permissions.ts of the component Shell Command Execution. The manipulation results in incorrect behavior order: validate before canonicalize. The attack may be launched remotely. The exploit is now public 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 2026-09-14 19:33 UTC
CWE
Assigner
VulDB
CNA
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/403315 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/403315/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-90813 | third-party-advisory |
| https://vuldb.com/submit/922879 | third-party-advisory |
| https://github.com/cosmicstack-labs/mercury-agent… | exploitissue-tracking |
| https://github.com/cosmicstack-labs/mercury-agent/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| cosmicstack-labs | mercury-agent |
Affected:
1.1.0
Affected: 1.1.1 Affected: 1.1.2 Affected: 1.1.3 Affected: 1.1.4 Affected: 1.1.5 Affected: 1.1.6 Affected: 1.1.7 Affected: 1.1.8 Affected: 1.1.9 Affected: 1.1.10 Affected: 1.1.11 Affected: 1.1.12 Affected: 1.1.13 cpe:2.3:a:cosmicstack-labs:mercury-agent:*:*:*:*:*:*:*:* |
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CVE-2026-84177 (GCVE-0-2026-84177)
Vulnerability from cvelistv5 – Published: 2026-11-01 22:25 – Updated: 2026-11-06 14:42
VLAI
EPSS
VEX
Title
Apache Wicket: A component's markup is served as a package resource when its class name contains an underscore
Summary
Incorrect behavior order in Apache Wicket: a file path is validated before the framework appends the attributes that complete it.
org.apache.wicket.request.resource.PackageResource asks the configured package resource guard about a path built from the scope class' package and the file name in the request URL, and then hands that same path to the resource stream locator together with a style, a variation and a locale. Those three attributes are decoded from the name of the first query parameter and never appear in the string the guard was given. org.apache.wicket.core.util.resource.locator.ResourceNameIterator appends them to that path, each preceded by an underscore, in the order variation, style, locale, before the file extension, so the file that is opened is not the file the guard approved.
org.apache.wicket.markup.html.PackageResourceGuard decides whether an HTML file is a component's markup template by looking for a class file of the same name beside it, stripping one underscore-delimited suffix at a time as it goes. HTML is on the default allow list, so that check is the only thing separating a static HTML file, which may be served, from a markup template, which may not. Asked about the name of a template, the guard refuses it correctly. Asked about a shorter name for which no class exists, it accepts, and a style supplied in the URL then completes that name into the markup template of a component class, which is written to the response.
An application is affected if the simple name of any of its component classes contains an underscore and no shorter part of that name is itself a class, such as Report_v2 or Wizard_Step1; an application with no such class name is not affected. No unusual deployment, packaging or configuration is required, and running in deployment rather than development mode does not prevent it. Java naming conventions discourage underscores in class names and no module Wicket ships has one, so no framework markup is exposed; what an application exposes this way is its own. A component whose class name has no underscore is not reachable, and neither is its localized or styled markup, because the guard finds the class file under the base name and refuses the request. The attributes cannot change the file extension and cannot leave the component's package, so nothing beyond HTML files in that package is reachable. Access is read-only, and what is disclosed is developer-authored template content: component structure, developer comments, markup that is rendered only under some conditions, inline script, and the endpoints a template names. No user data, credential or session material is reachable this way. An attacker has to name a class in the target package and the component itself, and Wicket writes fully qualified class names into the URL of every package resource it renders.
This issue affects Apache Wicket: from 8.0.0 through 8.19.0, from 9.0.0 through 9.24.0, from 10.0.0 through 10.11.0. Users of Apache Wicket 7.x or older, which are no longer supported, should upgrade to a supported version. Users are recommended to upgrade to version 8.20.0, 9.25.0 or 10.12.0, which fix the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 14:42 UTC
CWE
- CWE-179 - Incorrect Behavior Order: Early Validation
Assigner
apache
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://lists.apache.org/thread.html/hy089v60t5v3… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Wicket |
Affected:
8.0.0 , ≤ 8.19.0
(semver)
Affected: 9.0.0 , ≤ 9.24.0 (semver) Affected: 10.0.0 , ≤ 10.11.0 (semver) |
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CVE-2026-49414 (GCVE-0-2026-49414)
Vulnerability from cvelistv5 – Published: 2026-06-27 09:22 – Updated: 2026-06-29 13:04
VLAI
EPSS
VEX
Title
ASLR bypass for setuid executables via procctl(2)
Summary
The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen.
An unprivileged local user can disable ASLR for a setuid PIE binary by calling procctl(2) before execve(2). This makes exploitation of any separate memory corruption vulnerability in that binary significantly easier.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:04 UTC
CWE
- CWE-179 - Incorrect Behavior Order: Early Validation
Assigner
freebsd
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-06-09 23:30
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CVE-2026-3832 (GCVE-0-2026-3832)
Vulnerability from cvelistv5 – Published: 2026-04-30 17:41 – Updated: 2026-11-06 18:59
VLAI
EPSS
VEX
Title
Gnutls: gnutls: security bypass allows acceptance of revoked server certificates via crafted ocsp response
Summary
A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-30 18:22 UTC
CWE
- CWE-179 - Incorrect Behavior Order: Early Validation
Assigner
redhat
CNA
References
18 references
Impacted products
28 products
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
0 , < 3.8.13
(semver)
|
|||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.8.10-4.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:3.8.9-9.el10_0.19 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:3.8.10-4.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 |
Unaffected:
1791371080 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.17::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 |
Unaffected:
1791371069 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.17::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 |
Unaffected:
1791788287 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.17::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.17 |
Unaffected:
1791970484 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.17::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459707 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459711 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459759 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1789029076 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791966259 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 |
Unaffected:
1790598593 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.20::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1782159791 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1782166952 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
3.8.13-1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1781525684 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1781525671 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1781525693 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1781525739 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241211 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787135742 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1787241260 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-04-30 17:29
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"attackVector": "NETWORK",
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CVE-2024-41686 (GCVE-0-2024-41686)
Vulnerability from cvelistv5 – Published: 2024-07-26 11:45 – Updated: 2024-08-02 04:46
VLAI
EPSS
VEX
Title
Password Policy Bypass Vulnerability
Summary
This vulnerability exists in SyroTech SY-GPON-1110-WDONT Router due to improper implementation of password policies. A local attacker could exploit this by creating password that do not adhere to the defined security standards/policy on the vulnerable system.
Successful exploitation of this vulnerability could allow the attacker to expose the router to potential security threats.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-26 13:50 UTC
CWE
- CWE-179 - Incorrect Behavior Order: Early Validation
Assigner
CERT-In
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.cert-in.org.in/s2cMainServlet?pageid=… | third-party-advisory |
| https://cert-in.org.in/s2cMainServlet?pageid=PUBV… | third-party-advisoryx_transferred |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| SyroTech | SyroTech SY-GPON-1110-WDONT router |
Affected:
3.1.02-231102
|
|
| syrotech | sy-gpon-1110-wdont_firmware |
Affected:
3.1.02-231102
cpe:2.3:o:syrotech:sy-gpon-1110-wdont_firmware:3.1.02-231102:*:*:*:*:*:*:* |
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CVE-2022-1271 (GCVE-0-2022-1271)
Vulnerability from cvelistv5 – Published: 2022-08-31 15:33 – Updated: 2026-10-14 12:25
VLAI
EPSS
VEX
Summary
An arbitrary file write vulnerability was found in GNU gzip's zgrep utility. When zgrep is applied on the attacker's chosen file name (for example, a crafted file name), this can overwrite an attacker's content to an arbitrary attacker-selected file. This flaw occurs due to insufficient validation when processing filenames with two or more newlines where selected content and the target file names are embedded in crafted multi-line file names. This flaw allows a remote, low privileged attacker to force zgrep to write arbitrary files on the system.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-09 14:55 UTC
CWE
- CWE-179 - - Incorrect Behavior Order: Early Validation, CWE-1173 Improper Use of Validation Framework
Assigner
redhat
CNA
References
11 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2073310 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2022/… | x_refsource_MISC |
| https://lists.gnu.org/r/bug-gzip/2022-04/msg00011.html | x_refsource_MISC |
| https://tukaani.org/xz/xzgrep-ZDI-CAN-16587.patch | x_refsource_MISC |
| https://git.tukaani.org/?p=xz.git%3Ba=commit%3Bh=… | x_refsource_MISC |
| https://security-tracker.debian.org/tracker/CVE-2… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2022-1271 | x_refsource_MISC |
| https://security.gentoo.org/glsa/202209-01 | vendor-advisoryx_refsource_GENTOO |
| https://security.netapp.com/advisory/ntap-2022093… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/html/… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | gzip, xz-utils |
Affected:
Fixed in gzip 1.12
|
|
| Siemens | RUGGEDCOM APE1808 |
Affected:
0 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.0 , < V3.1.5
(custom)
|
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Mitigation MIT-20
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.
CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters
Some APIs will strip certain leading characters from a string of parameters. An adversary can intentionally introduce leading "ghost" characters (extra characters that don't affect the validity of the request at the API layer) that enable the input to pass the filters and therefore process the adversary's input. This occurs when the targeted API will accept input data in several syntactic forms and interpret it in the equivalent semantic way, while the filter does not take into account the full spectrum of the syntactic forms acceptable to the targeted API.
CAPEC-43: Exploiting Multiple Input Interpretation Layers
An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: <parser1> --> <input validator> --> <parser2>. In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
CAPEC-71: Using Unicode Encoding to Bypass Validation Logic
An attacker may provide a Unicode string to a system component that is not Unicode aware and use that to circumvent the filter or cause the classifying mechanism to fail to properly understanding the request. That may allow the attacker to slip malicious data past the content filter and/or possibly cause the application to route the request incorrectly.