Common Weakness Enumeration
CWE-436
Allowed-with-ReviewInterpretation Conflict
Abstraction: Class · Status: Incomplete
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
199 vulnerabilities reference this CWE, most recent first.
CVE-2026-45066 (GCVE-0-2026-45066)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:53 – Updated: 2026-07-14 17:53
VLAI
EPSS
VEX
Title
Symfony: HtmlSanitizer allowLinkHosts() / allowMediaHosts() Bypass via URL-Parser Differentials and <area> Misclassification
Summary
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, HtmlSanitizer URL sanitization can allow off-allowlist URLs through allowLinkHosts() or allowMediaHosts() because UrlSanitizer::parse() follows RFC 3986 while browsers follow WHATWG URL parsing, and because <area href> is checked against the media policy rather than the link policy. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12.
Severity
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/symfony/symfony/security/advis… | x_refsource_CONFIRM |
| https://github.com/symfony/symfony/commit/d506b55… | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v6.4.40 | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v7.4.12 | x_refsource_MISC |
| https://github.com/symfony/symfony/releases/tag/v8.0.12 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| symfony | symfony |
Affected:
>= 6.1.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12 Affected: >= 8.0.0-BETA1, < 8.0.12 |
|
| symfony | html-sanitizer |
Affected:
>= 6.1.0-BETA1, < 6.4.40
Affected: >= 7.0.0-BETA1, < 7.4.12 Affected: >= 8.0.0-BETA1, < 8.0.12 |
{
"containers": {
"cna": {
"affected": [
{
"product": "symfony",
"vendor": "symfony",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.1.0-BETA1, \u003c 6.4.40"
},
{
"status": "affected",
"version": "\u003e= 7.0.0-BETA1, \u003c 7.4.12"
},
{
"status": "affected",
"version": "\u003e= 8.0.0-BETA1, \u003c 8.0.12"
}
]
},
{
"product": "html-sanitizer",
"vendor": "symfony",
"versions": [
{
"status": "affected",
"version": "\u003e= 6.1.0-BETA1, \u003c 6.4.40"
},
{
"status": "affected",
"version": "\u003e= 7.0.0-BETA1, \u003c 7.4.12"
},
{
"status": "affected",
"version": "\u003e= 8.0.0-BETA1, \u003c 8.0.12"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 6.1.0-BETA1 until 6.4.40, 7.4.12, and 8.0.12, HtmlSanitizer URL sanitization can allow off-allowlist URLs through allowLinkHosts() or allowMediaHosts() because UrlSanitizer::parse() follows RFC 3986 while browsers follow WHATWG URL parsing, and because \u003carea href\u003e is checked against the media policy rather than the link policy. This issue is fixed in versions 6.4.40, 7.4.12, and 8.0.12."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 2.3,
"baseSeverity": "LOW",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-184",
"description": "CWE-184: Incomplete List of Disallowed Inputs",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T17:53:49.836Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/symfony/symfony/security/advisories/GHSA-qc95-4862-92fh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/symfony/symfony/security/advisories/GHSA-qc95-4862-92fh"
},
{
"name": "https://github.com/symfony/symfony/commit/d506b556d3d3906f3e8660ad82257ce87edbaac4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/symfony/symfony/commit/d506b556d3d3906f3e8660ad82257ce87edbaac4"
},
{
"name": "https://github.com/symfony/symfony/releases/tag/v6.4.40",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/symfony/symfony/releases/tag/v6.4.40"
},
{
"name": "https://github.com/symfony/symfony/releases/tag/v7.4.12",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/symfony/symfony/releases/tag/v7.4.12"
},
{
"name": "https://github.com/symfony/symfony/releases/tag/v8.0.12",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/symfony/symfony/releases/tag/v8.0.12"
}
],
"source": {
"advisory": "GHSA-qc95-4862-92fh",
"discovery": "UNKNOWN"
},
"title": "Symfony: HtmlSanitizer allowLinkHosts() / allowMediaHosts() Bypass via URL-Parser Differentials and \u003carea\u003e Misclassification"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-45066",
"datePublished": "2026-07-14T17:53:49.836Z",
"dateReserved": "2026-05-08T18:45:10.096Z",
"dateUpdated": "2026-07-14T17:53:49.836Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-44576 (GCVE-0-2026-44576)
Vulnerability from cvelistv5 – Published: 2026-05-13 16:57 – Updated: 2026-05-18 13:45
VLAI
EPSS
VEX
Title
Next.js: Cache poisoning in React Server Component responses
Summary
Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/vercel/next.js/security/adviso… | x_refsource_CONFIRM |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-44576",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-18T13:45:23.886970Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-18T13:45:59.133Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "next.js",
"vendor": "vercel",
"versions": [
{
"status": "affected",
"version": "\u003e= 14.2.0, \u003c 15.5.16"
},
{
"status": "affected",
"version": "\u003e= 16.0.0, \u003c 16.2.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T16:57:43.016Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vercel/next.js/security/advisories/GHSA-wfc6-r584-vfw7"
}
],
"source": {
"advisory": "GHSA-wfc6-r584-vfw7",
"discovery": "UNKNOWN"
},
"title": "Next.js: Cache poisoning in React Server Component responses"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-44576",
"datePublished": "2026-05-13T16:57:10.923Z",
"dateReserved": "2026-05-06T21:49:12.424Z",
"dateUpdated": "2026-05-18T13:45:59.133Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42551 (GCVE-0-2026-42551)
Vulnerability from cvelistv5 – Published: 2026-05-13 19:23 – Updated: 2026-05-14 12:49
VLAI
EPSS
VEX
Title
Flight: HTTP method override enabled by default enables CSRF escalation and middleware bypass in flightphp/core
Summary
Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod() unconditionally honors the X-HTTP-Method-Override header and the $_REQUEST['_method'] parameter on any HTTP verb (including safe verbs such as GET), with no opt-in and no whitelist of permitted target methods. A GET request can silently become a DELETE or PUT, enabling CSRF escalation against destructive endpoints, bypass of middleware gated on unsafe verbs, and cache poisoning between CDN and origin. This vulnerability is fixed in 3.18.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/flightphp/core/security/adviso… | x_refsource_CONFIRM |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42551",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-14T12:49:44.246541Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-14T12:49:48.236Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/flightphp/core/security/advisories/GHSA-vxrr-w42w-w76g"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "core",
"vendor": "flightphp",
"versions": [
{
"status": "affected",
"version": "\u003c 3.18.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Flight is an extensible micro-framework for PHP. Prior to 3.18.1, Request::getMethod() unconditionally honors the X-HTTP-Method-Override header and the $_REQUEST[\u0027_method\u0027] parameter on any HTTP verb (including safe verbs such as GET), with no opt-in and no whitelist of permitted target methods. A GET request can silently become a DELETE or PUT, enabling CSRF escalation against destructive endpoints, bypass of middleware gated on unsafe verbs, and cache poisoning between CDN and origin. This vulnerability is fixed in 3.18.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T19:23:27.314Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/flightphp/core/security/advisories/GHSA-vxrr-w42w-w76g",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/flightphp/core/security/advisories/GHSA-vxrr-w42w-w76g"
}
],
"source": {
"advisory": "GHSA-vxrr-w42w-w76g",
"discovery": "UNKNOWN"
},
"title": "Flight: HTTP method override enabled by default enables CSRF escalation and middleware bypass in flightphp/core"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42551",
"datePublished": "2026-05-13T19:23:27.314Z",
"dateReserved": "2026-04-28T16:56:50.191Z",
"dateUpdated": "2026-05-14T12:49:48.236Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42462 (GCVE-0-2026-42462)
Vulnerability from cvelistv5 – Published: 2026-06-10 20:22 – Updated: 2026-06-11 13:34
VLAI
EPSS
VEX
Title
Fedify has an LD-Signature Bypass via JSON-LD Named-Graph Restructuring
Summary
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it without changing its Linked Data Signature, allowing them to alter a third-party signed activity they have received. Versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3 fix the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/fedify-dev/fedify/security/adv… | x_refsource_CONFIRM |
| https://github.com/fedify-dev/fedify/releases/tag/2.2.3 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| fedify-dev | fedify |
Affected:
>= 2.2.0, < 2.2.3
Affected: >= 2.1.0, < 2.1.14 Affected: >= 2.0.0, < 2.0.18 Affected: >= 1.10.0, < 1.10.10 Affected: < 1.9.11 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42462",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-11T13:31:40.827057Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-11T13:34:03.443Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "fedify",
"vendor": "fedify-dev",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.2.0, \u003c 2.2.3"
},
{
"status": "affected",
"version": "\u003e= 2.1.0, \u003c 2.1.14"
},
{
"status": "affected",
"version": "\u003e= 2.0.0, \u003c 2.0.18"
},
{
"status": "affected",
"version": "\u003e= 1.10.0, \u003c 1.10.10"
},
{
"status": "affected",
"version": "\u003c 1.9.11"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it without changing its Linked Data Signature, allowing them to alter a third-party signed activity they have received. Versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3 fix the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-180",
"description": "CWE-180: Incorrect Behavior Order: Validate Before Canonicalize",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-347",
"description": "CWE-347: Improper Verification of Cryptographic Signature",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-1289",
"description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T20:22:35.383Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-9rfg-v8g9-9367",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/fedify-dev/fedify/security/advisories/GHSA-9rfg-v8g9-9367"
},
{
"name": "https://github.com/fedify-dev/fedify/releases/tag/2.2.3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/fedify-dev/fedify/releases/tag/2.2.3"
}
],
"source": {
"advisory": "GHSA-9rfg-v8g9-9367",
"discovery": "UNKNOWN"
},
"title": "Fedify has an LD-Signature Bypass via JSON-LD Named-Graph Restructuring"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42462",
"datePublished": "2026-06-10T20:22:35.383Z",
"dateReserved": "2026-04-27T13:55:58.694Z",
"dateUpdated": "2026-06-11T13:34:03.443Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42274 (GCVE-0-2026-42274)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:43 – Updated: 2026-05-11 18:20
VLAI
EPSS
VEX
Title
Heimdall: Authorization bypass via path normalization mismatch
Summary
Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs rule matching on the raw (non-normalized) request path, while downstream components may normalize dot-segments according to RFC 3986, Section 6.2.2.3. This discrepancy can result in heimdall authorizing a request for one path (e.g., /user/../admin, or URL-encoded variants such as /user/%2e%2e/admin or /user/%2e%2e%2fadmin. The latter would require the allow_encoded_slashes option to be set to on or no_decode.) while the downstream ultimately processes a different, normalized path (/admin). This issue has been patched in version 0.17.14.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/dadrus/heimdall/security/advis… | x_refsource_CONFIRM |
| https://github.com/dadrus/heimdall/pull/3209 | x_refsource_MISC |
| https://github.com/dadrus/heimdall/commit/b5dfa48… | x_refsource_MISC |
| https://github.com/dadrus/heimdall/releases/tag/v… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42274",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-11T18:19:37.764124Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T18:20:15.059Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "heimdall",
"vendor": "dadrus",
"versions": [
{
"status": "affected",
"version": "\u003c 0.17.14"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs rule matching on the raw (non-normalized) request path, while downstream components may normalize dot-segments according to RFC 3986, Section 6.2.2.3. This discrepancy can result in heimdall authorizing a request for one path (e.g., /user/../admin, or URL-encoded variants such as /user/%2e%2e/admin or /user/%2e%2e%2fadmin. The latter would require the allow_encoded_slashes option to be set to on or no_decode.) while the downstream ultimately processes a different, normalized path (/admin). This issue has been patched in version 0.17.14."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-35",
"description": "CWE-35: Path Traversal: \u0027.../...//\u0027",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T03:43:41.597Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/dadrus/heimdall/security/advisories/GHSA-3q34-rx83-r6mq",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/dadrus/heimdall/security/advisories/GHSA-3q34-rx83-r6mq"
},
{
"name": "https://github.com/dadrus/heimdall/pull/3209",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/pull/3209"
},
{
"name": "https://github.com/dadrus/heimdall/commit/b5dfa484b7a8c2ce6d8691c026f9da867719947a",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/commit/b5dfa484b7a8c2ce6d8691c026f9da867719947a"
},
{
"name": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14"
}
],
"source": {
"advisory": "GHSA-3q34-rx83-r6mq",
"discovery": "UNKNOWN"
},
"title": "Heimdall: Authorization bypass via path normalization mismatch"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42274",
"datePublished": "2026-05-08T03:43:41.597Z",
"dateReserved": "2026-04-26T11:53:27.707Z",
"dateUpdated": "2026-05-11T18:20:15.059Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42273 (GCVE-0-2026-42273)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:42 – Updated: 2026-05-08 10:40
VLAI
EPSS
VEX
Title
Heimdall: Case-sensitive host matching may lead to policy bypass
Summary
Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs host matching in a case-sensitive manner, while HTTP hostnames are case-insensitive. This discrepancy can result in heimdall failing to match a rule for a request host that differs only in letter casing, potentially causing the request to be classified differently than intended. This issue has been patched in version 0.17.14.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/dadrus/heimdall/security/advis… | x_refsource_CONFIRM |
| https://github.com/dadrus/heimdall/pull/3208 | x_refsource_MISC |
| https://github.com/dadrus/heimdall/commit/3d05e56… | x_refsource_MISC |
| https://github.com/dadrus/heimdall/releases/tag/v… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42273",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-08T10:40:38.505776Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T10:40:56.541Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "heimdall",
"vendor": "dadrus",
"versions": [
{
"status": "affected",
"version": "\u003c 0.17.14"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs host matching in a case-sensitive manner, while HTTP hostnames are case-insensitive. This discrepancy can result in heimdall failing to match a rule for a request host that differs only in letter casing, potentially causing the request to be classified differently than intended. This issue has been patched in version 0.17.14."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-178",
"description": "CWE-178: Improper Handling of Case Sensitivity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T03:42:50.312Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37"
},
{
"name": "https://github.com/dadrus/heimdall/pull/3208",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/pull/3208"
},
{
"name": "https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943"
},
{
"name": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14"
}
],
"source": {
"advisory": "GHSA-72h4-mxfc-jx37",
"discovery": "UNKNOWN"
},
"title": "Heimdall: Case-sensitive host matching may lead to policy bypass"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42273",
"datePublished": "2026-05-08T03:42:50.312Z",
"dateReserved": "2026-04-26T11:53:27.707Z",
"dateUpdated": "2026-05-08T10:40:56.541Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42272 (GCVE-0-2026-42272)
Vulnerability from cvelistv5 – Published: 2026-05-08 03:40 – Updated: 2026-05-08 23:12
VLAI
EPSS
VEX
Title
Heimdall: Case-sensitive handling of URL-encoded slashes may lead to inconsistent path interpretation
Summary
Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall handles URL-encoded slashes (%2F) in a case-sensitive manner, while percent-encoding is defined to be case-insensitive. As a result, the lowercase equivalent (%2f) is not recognized and therefore not processed as expected when allow_encoded_slashes is set to off (the default setting). This discrepancy can lead to differences in how request paths are interpreted by heimdall and upstream components, which may result in authorization bypass. This issue has been patched in version 0.17.14.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/dadrus/heimdall/security/advis… | x_refsource_CONFIRM |
| https://github.com/dadrus/heimdall/pull/3207 | x_refsource_MISC |
| https://github.com/dadrus/heimdall/commit/8b0de6a… | x_refsource_MISC |
| https://github.com/dadrus/heimdall/releases/tag/v… | x_refsource_MISC |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42272",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-08T23:12:19.653095Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T23:12:35.366Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "heimdall",
"vendor": "dadrus",
"versions": [
{
"status": "affected",
"version": "\u003c 0.17.14"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall handles URL-encoded slashes (%2F) in a case-sensitive manner, while percent-encoding is defined to be case-insensitive. As a result, the lowercase equivalent (%2f) is not recognized and therefore not processed as expected when allow_encoded_slashes is set to off (the default setting). This discrepancy can lead to differences in how request paths are interpreted by heimdall and upstream components, which may result in authorization bypass. This issue has been patched in version 0.17.14."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "HIGH",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-178",
"description": "CWE-178: Improper Handling of Case Sensitivity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-08T03:40:17.541Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/dadrus/heimdall/security/advisories/GHSA-43jv-5j4x-qv67",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/dadrus/heimdall/security/advisories/GHSA-43jv-5j4x-qv67"
},
{
"name": "https://github.com/dadrus/heimdall/pull/3207",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/pull/3207"
},
{
"name": "https://github.com/dadrus/heimdall/commit/8b0de6aba23a047cfee3081df878271bb17f4351",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/commit/8b0de6aba23a047cfee3081df878271bb17f4351"
},
{
"name": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/dadrus/heimdall/releases/tag/v0.17.14"
}
],
"source": {
"advisory": "GHSA-43jv-5j4x-qv67",
"discovery": "UNKNOWN"
},
"title": "Heimdall: Case-sensitive handling of URL-encoded slashes may lead to inconsistent path interpretation"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42272",
"datePublished": "2026-05-08T03:40:17.541Z",
"dateReserved": "2026-04-26T11:53:27.707Z",
"dateUpdated": "2026-05-08T23:12:35.366Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-42177 (GCVE-0-2026-42177)
Vulnerability from cvelistv5 – Published: 2026-05-12 17:11 – Updated: 2026-05-13 14:37
VLAI
EPSS
VEX
Title
linux-entra-sso: PRT SSO cookie can leak to attacker-controlled hosts when broad host permissions are granted
Summary
linux-entra-sso is a browser plugin for Linux to SSO on Microsoft Entra ID. Prior to 1.8.1, platform/chrome/js/platform-chrome.js:69-88 registers a single declarativeNetRequest rule whose urlFilter is Platform.SSO_URL + "/*", i.e. "https://login.microsoftonline.com/*". Chrome's urlFilter without a | or || anchor is substring-matched against the full request URL. The same applied rule action is modifyHeaders that attaches the Entra ID Primary Refresh Token cookie. The Firefox adapter in platform/firefox/js/platform-firefox.js:53 performs a belt-and-braces startsWith(Platform.SSO_URL) check before injecting the header; the Chrome adapter does not. When the extension holds broad host permissions through the optional_host_permissions: ["https://*/*"] declared in platform/chrome/manifest.json:34, a main-frame navigation to a URL whose path embeds https://login.microsoftonline.com/ causes Chrome to attach the PRT cookie to the request to the attacker-controlled host. This vulnerability is fixed in 1.8.1.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/siemens/linux-entra-sso/securi… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| siemens | linux-entra-sso |
Affected:
< 1.8.1
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-42177",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-13T14:35:33.712997Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-13T14:37:56.682Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"url": "https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "linux-entra-sso",
"vendor": "siemens",
"versions": [
{
"status": "affected",
"version": "\u003c 1.8.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "linux-entra-sso is a browser plugin for Linux to SSO on Microsoft Entra ID. Prior to 1.8.1, platform/chrome/js/platform-chrome.js:69-88 registers a single declarativeNetRequest rule whose urlFilter is Platform.SSO_URL + \"/*\", i.e. \"https://login.microsoftonline.com/*\". Chrome\u0027s urlFilter without a | or || anchor is substring-matched against the full request URL. The same applied rule action is modifyHeaders that attaches the Entra ID Primary Refresh Token cookie. The Firefox adapter in platform/firefox/js/platform-firefox.js:53 performs a belt-and-braces startsWith(Platform.SSO_URL) check before injecting the header; the Chrome adapter does not. When the extension holds broad host permissions through the optional_host_permissions: [\"https://*/*\"] declared in platform/chrome/manifest.json:34, a main-frame navigation to a URL whose path embeds https://login.microsoftonline.com/ causes Chrome to attach the PRT cookie to the request to the attacker-controlled host. This vulnerability is fixed in 1.8.1."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "CWE-284: Improper Access Control",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T17:11:36.050Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/siemens/linux-entra-sso/security/advisories/GHSA-52rj-42vh-2rxc"
}
],
"source": {
"advisory": "GHSA-52rj-42vh-2rxc",
"discovery": "UNKNOWN"
},
"title": "linux-entra-sso: PRT SSO cookie can leak to attacker-controlled hosts when broad host permissions are granted"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-42177",
"datePublished": "2026-05-12T17:11:36.050Z",
"dateReserved": "2026-04-25T01:53:21.582Z",
"dateUpdated": "2026-05-13T14:37:56.682Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-41248 (GCVE-0-2026-41248)
Vulnerability from cvelistv5 – Published: 2026-04-24 21:04 – Updated: 2026-04-27 13:46
VLAI
EPSS
VEX
Title
Official Clerk JavaScript SDKs: Middleware-based route protection bypass
Summary
Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. This vulnerability is fixed in @clerk/astro 1.5.7, 2.17.10, and 3.0.15; @clerk/nextjs 5.7.6, 6.39.2, and 7.2.1; @clerk/nuxt 1.13.28 and 2.2.2; and @clerk/shared 2.22.1, 3.47.4, anc 4.8.1
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/clerk/javascript/security/advi… | x_refsource_CONFIRM |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| clerk | astro |
Affected:
>= 0.0.1, < 1.5.7
Affected: >= 2.0.0-snapshot.v20241206174604, <= 2.17.9 Affected: >= 3.0.0, < 3.0.15 |
|
| clerk | nextjs |
Affected:
>= 5.0.0, < 5.7.6
Affected: >= 6.0.0-snapshot.vb87a27f, < 6.39.2 Affected: >= 7.0.0, < 7.2.1 |
|
| clerk | nuxt |
Affected:
>= 1.1.0, < 1.13.28
Affected: >= 2.0.0, < 2.2.2 |
|
| clerk | shared |
Affected:
>= 2.20.17, < 2.22.1
Affected: >= 3.0.0-canary.v20250225091530, < 3.47.4 Affected: >= 4.0.0, < 4.8.1 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-41248",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T13:46:14.373183Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T13:46:28.646Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "astro",
"vendor": "clerk",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.0.1, \u003c 1.5.7"
},
{
"status": "affected",
"version": "\u003e= 2.0.0-snapshot.v20241206174604, \u003c= 2.17.9"
},
{
"status": "affected",
"version": "\u003e= 3.0.0, \u003c 3.0.15"
}
]
},
{
"product": "nextjs",
"vendor": "clerk",
"versions": [
{
"status": "affected",
"version": "\u003e= 5.0.0, \u003c 5.7.6"
},
{
"status": "affected",
"version": "\u003e= 6.0.0-snapshot.vb87a27f, \u003c 6.39.2"
},
{
"status": "affected",
"version": "\u003e= 7.0.0, \u003c 7.2.1"
}
]
},
{
"product": "nuxt",
"vendor": "clerk",
"versions": [
{
"status": "affected",
"version": "\u003e= 1.1.0, \u003c 1.13.28"
},
{
"status": "affected",
"version": "\u003e= 2.0.0, \u003c 2.2.2"
}
]
},
{
"product": "shared",
"vendor": "clerk",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.20.17, \u003c 2.22.1"
},
{
"status": "affected",
"version": "\u003e= 3.0.0-canary.v20250225091530, \u003c 3.47.4"
},
{
"status": "affected",
"version": "\u003e= 4.0.0, \u003c 4.8.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Clerk JavaScript is the official JavaScript repository for Clerk authentication. createRouteMatcher in @clerk/nextjs, @clerk/nuxt, and @clerk/astro can be bypassed by certain crafted requests, allowing them to skip middleware gating and reach downstream handlers. This vulnerability is fixed in @clerk/astro 1.5.7, 2.17.10, and 3.0.15; @clerk/nextjs 5.7.6, 6.39.2, and 7.2.1; @clerk/nuxt 1.13.28 and 2.2.2; and @clerk/shared 2.22.1, 3.47.4, anc 4.8.1"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-863",
"description": "CWE-863: Incorrect Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-24T21:04:35.810Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/clerk/javascript/security/advisories/GHSA-vqx2-fgx2-5wq9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/clerk/javascript/security/advisories/GHSA-vqx2-fgx2-5wq9"
}
],
"source": {
"advisory": "GHSA-vqx2-fgx2-5wq9",
"discovery": "UNKNOWN"
},
"title": "Official Clerk JavaScript SDKs: Middleware-based route protection bypass"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-41248",
"datePublished": "2026-04-24T21:04:35.810Z",
"dateReserved": "2026-04-18T03:47:03.136Z",
"dateUpdated": "2026-04-27T13:46:28.646Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-40930 (GCVE-0-2026-40930)
Vulnerability from cvelistv5 – Published: 2026-06-04 14:34 – Updated: 2026-06-04 16:37
VLAI
EPSS
VEX
Title
LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body
Summary
LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pnggroup/libpng/security/advis… | x_refsource_CONFIRM |
| https://github.com/pnggroup/libpng/commit/faf0692… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| pnggroup | libpng |
Affected:
= 1.8.0
|
|
| pnggroup | libpng-apng |
Affected:
>= 1.6.49, <= 1.6.57
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-06-04T15:05:19.991Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/15/21"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-40930",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-04T16:37:21.465127Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T16:37:38.286Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "libpng",
"vendor": "pnggroup",
"versions": [
{
"status": "affected",
"version": "= 1.8.0"
}
]
},
{
"product": "libpng-apng",
"vendor": "pnggroup",
"versions": [
{
"status": "affected",
"version": "\u003e= 1.6.49, \u003c= 1.6.57"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-436",
"description": "CWE-436: Interpretation Conflict",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-04T14:34:51.843Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-c4v6-gxrq-6g2x"
},
{
"name": "https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pnggroup/libpng/commit/faf06924688b62d7c1654b5ceddedbde66ffadb4"
}
],
"source": {
"advisory": "GHSA-c4v6-gxrq-6g2x",
"discovery": "UNKNOWN"
},
"title": "LIBPNG: Chunk smuggling in push-mode APNG parser via unconsumed chunk body"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-40930",
"datePublished": "2026-06-04T14:34:51.843Z",
"dateReserved": "2026-04-15T20:40:15.518Z",
"dateUpdated": "2026-06-04T16:37:38.286Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
No mitigation information available for this CWE.
CAPEC-105: HTTP Request Splitting
An adversary abuses the flexibility and discrepancies in the parsing and interpretation of HTTP Request messages by different intermediary HTTP agents (e.g., load balancer, reverse proxy, web caching proxies, application firewalls, etc.) to split a single HTTP request into multiple unauthorized and malicious HTTP requests to a back-end HTTP agent (e.g., web server).
See CanPrecede relationships for possible consequences.
CAPEC-273: HTTP Response Smuggling
An adversary manipulates and injects malicious content in the form of secret unauthorized HTTP responses, into a single HTTP response from a vulnerable or compromised back-end HTTP agent (e.g., server).
See CanPrecede relationships for possible consequences.
CAPEC-34: HTTP Response Splitting
An adversary manipulates and injects malicious content, in the form of secret unauthorized HTTP responses, into a single HTTP response from a vulnerable or compromised back-end HTTP agent (e.g., web server) or into an already spoofed HTTP response from an adversary controlled domain/site.
See CanPrecede relationships for possible consequences.