{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-46821", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-04-30T19:41:58.134Z", "datePublished": "2025-05-07T21:24:07.891Z", "dateUpdated": "2025-05-08T14:11:13.676Z"}, "containers": {"cna": {"title": "Envoy vulnerable to bypass of RBAC uri_template permission", "problemTypes": [{"descriptions": [{"cweId": "CWE-186", "lang": "en", "description": "CWE-186: Overly Restrictive Regular Expression", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67"}], "affected": [{"vendor": "envoyproxy", "product": "envoy", "versions": [{"version": "< 1.31.8", "status": "affected"}, {"version": ">= 1.32.0, < 1.32.6", "status": "affected"}, {"version": ">= 1.33.0, < 1.33.3", "status": "affected"}, {"version": ">= 1.34.0, < 1.34.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-05-07T21:24:07.891Z"}, "descriptions": [{"lang": "en", "value": "Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression."}], "source": {"advisory": "GHSA-c7cm-838g-6g67", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-08T13:43:52.581427Z", "id": "CVE-2025-46821", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-08T14:11:13.676Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Envoy is a cloud-native edge/middle/service proxy. Prior to versions 1.34.1, 1.33.3, 1.32.6, and 1.31.8, Envoy's URI template matcher incorrectly excludes the `*` character from a set of valid characters in the URI path. As a result URI path containing the `*` character will not match a URI template expressions. This can result in bypass of RBAC rules when configured using the `uri_template` permissions. This vulnerability is fixed in Envoy versions v1.34.1, v1.33.3, v1.32.6, v1.31.8. As a workaround, configure additional RBAC permissions using `url_path` with `safe_regex` expression."}, {"lang": "es", "value": "Envoy es un proxy de borde, intermedio y de servicio nativo de la nube. En versiones anteriores a las 1.34.1, 1.33.3, 1.32.6 y 1.31.8, el comparador de plantillas de URI de Envoy exclu\u00eda incorrectamente el car\u00e1cter `*` de un conjunto de caracteres v\u00e1lidos en la ruta de URI. Como resultado, una ruta de URI que contenga el car\u00e1cter `*` no coincidir\u00e1 con las expresiones de plantilla de URI. Esto puede provocar la omisi\u00f3n de las reglas RBAC al configurarse con los permisos `uri_template`. Esta vulnerabilidad se ha corregido en las versiones 1.34.1, 1.33.3, 1.32.6 y 1.31.8 de Envoy. Como workaround, configure permisos RBAC adicionales mediante `url_path` con la expresi\u00f3n `safe_regex`."}], "id": "CVE-2025-46821", "lastModified": "2025-05-08T14:39:09.683", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2025-05-07T22:15:21.170", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-c7cm-838g-6g67"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-186"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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