CWE-1289
Improper Validation of Unsafe Equivalence in Input
The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value.
CVE-2022-0675 (GCVE-0-2022-0675)
Vulnerability from cvelistv5
Published
2022-03-02 21:00
Modified
2024-08-02 23:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
In certain situations it is possible for an unmanaged rule to exist on the target system that has the same comment as the rule specified in the manifest. This could allow for unmanaged rules to exist on the target system and leave the system in an unsafe state.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Puppet | Firewall Module |
Version: prior to 3.4.0 < 3.4.0 |
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CVE-2024-12224 (GCVE-0-2024-12224)
Vulnerability from cvelistv5
Published
2025-05-30 01:16
Modified
2025-05-30 12:46
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Improper Validation of Unsafe Equivalence in punycode by the idna crate from Servo rust-url allows an attacker to create a punycode hostname that one part of a system might treat as distinct while another part of that system would treat as equivalent to another hostname.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2024-45308 (GCVE-0-2024-45308)
Vulnerability from cvelistv5
Published
2024-09-02 16:40
Modified
2024-09-03 14:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
HedgeDoc is an open source, real-time, collaborative, markdown notes application. When using HedgeDoc 1 with MySQL or MariaDB, it is possible to create notes with an alias matching the ID of existing notes. The affected existing note can then not be accessed anymore and is effectively hidden by the new one. When the freeURL feature is enabled (by setting the `allowFreeURL` config option or the `CMD_ALLOW_FREEURL` environment variable to `true`), any user with the appropriate permissions can create a note with an arbitrary alias, e.g. by accessing it in the browser. When MySQL or MariaDB are used, it is possible to create a new note with an alias that matches the lower-cased ID of a different note. HedgeDoc then always presents the new note to users, as these databases perform case-insensitive matching and the lower-cased alias is found first. This issue only affects HedgeDoc instances that use MySQL or MariaDB. Depending on the permission settings of the HedgeDoc instance, the issue can be exploited only by logged-in users or by all (including non-logged-in) users. The exploit requires knowledge of the ID of the target note. Attackers could use this issue to present a manipulated copy of the original note to the user, e.g. by replacing the links with malicious ones. Attackers can also use this issue to prevent access to the original note, causing a denial of service. No data is lost, as the original content of the affected notes is still present in the database. Users are advised to upgrade to version 1.10.0 which addresses this issue. Users unable to upgrade may disable freeURL mode which prevents the exploitation of this issue. The impact can also be limited by restricting freeURL note creation to trusted, logged-in users by enabling `requireFreeURLAuthentication`/`CMD_REQUIRE_FREEURL_AUTHENTICATION`.
References
| URL | Tags | |
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CVE-2024-8372 (GCVE-0-2024-8372)
Vulnerability from cvelistv5
Published
2024-09-09 14:46
Modified
2025-11-03 19:34
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
Improper sanitization of the value of the 'srcset' attribute in AngularJS allows attackers to bypass common image source restrictions, which can also lead to a form of Content Spoofing https://owasp.org/www-community/attacks/Content_Spoofing .
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Note:
The AngularJS project is End-of-Life and will not receive any updates to address this issue. For more information see here https://docs.angularjs.org/misc/version-support-status .
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2026-100837 (GCVE-0-2026-100837)
Vulnerability from cvelistv5
Published
2026-09-27 01:30
Modified
2026-09-28 13:47
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
VLAI Severity ?
EPSS score ?
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
Contrast (Edgeless Systems) through 1.20.0 performs unanchored suffix matching when selecting per-registry configuration in the imagepuller. Config.registryFor strips a single trailing dot and then uses strings.HasSuffix(hostname, fqdn) without requiring a DNS label boundary, so a registry entry such as [registries."ghcr.io."] is also applied to any host whose name merely ends in that byte sequence, including attacker-registered domains such as evilghcr.io. When an image or layer is pulled from such a sibling domain, the imagepuller sends the configured Authorization header (basic auth, registry token, or identity token), trusts the configured custom CA bundle, follows the configured mirror, and honours insecure-skip-verify (disabling TLS verification) for that host. Image integrity is not affected, as image bytes remain pinned by digest in the policy and are validated after the pull. Configurations that use a leading dot (e.g., [registries.".example.registry"]) are unaffected.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| edgelesssys | contrast |
Version: 0 ≤ 1.20.0 |
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CVE-2026-101015 (GCVE-0-2026-101015)
Vulnerability from cvelistv5
Published
2026-09-28 08:30
Modified
2026-10-01 14:10
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A flaw has been found in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this issue is some unknown functionality of the file policy.c of the component Domain Handler. Executing a manipulation can lead to improper validation of unsafe equivalence in input. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Trusted Domain Project | OpenDMARC |
Version: 1.4.0 Version: 1.4.1 Version: 1.4.2 cpe:2.3:a:trusted_domain_project:opendmarc:*:*:*:*:*:*:*:* |
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CVE-2026-102478 (GCVE-0-2026-102478)
Vulnerability from cvelistv5
Published
2026-10-07 01:17
Modified
2026-10-07 18:40
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
In affected versions of Octopus Server, an authenticated user with permission to modify roles could bypass the protections preventing access abuse resulting in privilege escalation. It was possible for the built-in role to be weakened and the attacker's account added to a privileged team. This was achievable due to improper validation of unsafe equivalence in inputs.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Octopus Deploy | Octopus Server |
Version: 2023.2.945 < 2026.1.11768 Version: 2026.2.0 < 2026.2.13408 Version: 2026.3.0 < 2026.3.15816 |
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CVE-2026-105048 (GCVE-0-2026-105048)
Vulnerability from cvelistv5
Published
2026-10-02 22:08
Modified
2026-10-06 15:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-1289 - Improper Validation of Unsafe Equivalence in Input
Summary
The Playground feature of Zilliz Attu before 3.0.0 allows SSRF (proxying of requests to private IP addresses).
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2026-106445 (GCVE-0-2026-106445)
Vulnerability from cvelistv5
Published
2026-10-06 19:39
Modified
2026-10-12 14:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Handlebars provides the power necessary to let users build semantic templates. From 3.0.0 until 4.7.10, Handlebars lookupProperty returns Function.prototype.constructor before applying the prototype-access deny list because constructor is an own property of Function.prototype. When an attacker can render a controlled template with allowProtoMethodsByDefault enabled and an accessible function in the template context, the template can traverse from that function through its prototype to Function.prototype and then obtain the Function constructor through the own-property bypass. This permits attacker-controlled JavaScript to execute with the server application's privileges. This issue is fixed in version 4.7.10.
References
| URL | Tags | |
|---|---|---|
|
|
||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| handlebars-lang | handlebars.js |
Version: >= 3.0.0, < 4.7.10 |
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CVE-2026-107288 (GCVE-0-2026-107288)
Vulnerability from cvelistv5
Published
2026-10-08 15:18
Modified
2026-10-08 17:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Pydantic AI is a Python agent framework for building applications and workflows with Generative AI. From 1.77.0 until 1.107.6 and 2.44.0, the local web_fetch_tool and the WebFetch local fallback compare blocked_domains entries with a URL hostname before both values are normalized to the form used by getaddrinfo. An attacker-influenced model can use an equivalent IDNA spelling, non-ASCII label separator, case variation, or trailing root label that resolves to a blocked host but does not match the configured string, causing the application to fetch that host with its own privileges. allowed_domains fails closed for unmatched spellings, and private-IP and cloud-metadata protections remain effective. This issue is fixed in versions 1.107.6 and 2.44.0.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| pydantic | pydantic-ai |
Version: >= 1.77.0, < 1.107.6 Version: >= 2.0.0b1, < 2.44.0 |
|||||||
|
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Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- 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.
No CAPEC attack patterns related to this CWE.