CVE-2026-26205

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{"affected": [{"affectedData": [{"product": "opa-envoy-plugin", "vendor": "open-policy-agent", "versions": [{"status": "affected", "version": "< 1.13.2-envoy-2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "opa-envoy-plugun is a plugin to enforce OPA policies with Envoy. Versions prior to 1.13.2-envoy-2 have a vulnerability in how the `input.parsed_path` field is constructed. HTTP request paths are treated as full URIs when parsed; interpreting leading path segments prefixed with double slashes (`//`) as authority components, and therefore dropping them from the parsed path. This creates a path interpretation mismatch between authorization policies and backend servers, enabling attackers to bypass access controls by crafting requests where the authorization filter evaluates a different path than the one ultimately served. Version 1.13.2-envoy-2 fixes the issue."}, {"lang": "es", "value": "opa-envoy-plugin es un plugin para aplicar pol\u00edticas OPA con Envoy. Las versiones anteriores a 1.13.2-envoy-2 tienen una vulnerabilidad en c\u00f3mo se construye el campo 'input.parsed_path'. Las rutas de solicitud HTTP se tratan como URIs completas al ser analizadas; interpretando los segmentos de ruta iniciales prefijados con barras dobles ('//') como componentes de autoridad, y por lo tanto, elimin\u00e1ndolos de la ruta analizada. Esto crea una falta de coincidencia en la interpretaci\u00f3n de la ruta entre las pol\u00edticas de autorizaci\u00f3n y los servidores backend, permitiendo a los atacantes eludir los controles de acceso mediante la creaci\u00f3n de solicitudes donde el filtro de autorizaci\u00f3n eval\u00faa una ruta diferente a la que finalmente se sirve. La versi\u00f3n 1.13.2-envoy-2 soluciona el problema."}], "id": "CVE-2026-26205", "lastModified": "2026-06-17T10:25:56.370", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-26205", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-02-19T20:54:43.231111Z", "version": "2.0.3"}}]}, "published": "2026-02-19T20:25:43.263", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/open-policy-agent/opa-envoy-plugin/commit/58c44d4ec408d5852d1d0287599e7d5c5e2bc5c3"}, {"source": "security-advisories@github.com", "url": "https://github.com/open-policy-agent/opa-envoy-plugin/releases/tag/v1.13.2-envoy-2"}, {"source": "security-advisories@github.com", "url": "https://github.com/open-policy-agent/opa-envoy-plugin/security/advisories/GHSA-9f29-v6mm-pw6w"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"created": "2026-02-20T09:54:13.375716+00:00", "updated": "2026-02-20T09:54:13.375827+00:00", "vendors": ["open-policy-agent", "open-policy-agent$PRODUCT$opa-envoy-plugin"]}