CVE-2026-55771

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-55771", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-17T14:34:51.881Z", "datePublished": "2026-07-13T19:28:00.835Z", "dateUpdated": "2026-07-14T14:31:41.860Z"}, "containers": {"cna": {"title": "CedarJava has policy injection, type confusion, and incorrect equality comparison vulnerabilities", "problemTypes": [{"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-697", "lang": "en", "description": "CWE-697: Incorrect Comparison", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-843", "lang": "en", "description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/cedar-policy/cedar-java/security/advisories/GHSA-4r9r-4425-74p7", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/cedar-policy/cedar-java/security/advisories/GHSA-4r9r-4425-74p7"}], "affected": [{"vendor": "cedar-policy", "product": "cedar-java", "versions": [{"version": "< 4.9.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-13T19:28:00.835Z"}, "descriptions": [{"lang": "en", "value": "CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. In versions prior to 4.9.0, the EntityIdentifier.equals() has inverted null/self branches which could lead to incorrect equality comparisons. The EntityIdentifier.equals() method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. This issue has been fixed in version 4.9.0."}], "source": {"advisory": "GHSA-4r9r-4425-74p7", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-14T14:23:44.626378Z", "id": "CVE-2026-55771", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T14:31:41.860Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-55771", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-14T14:23:44.626378Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T14:23:48.815Z"}}], "cna": {"title": "CedarJava has policy injection, type confusion, and incorrect equality comparison vulnerabilities", "source": {"advisory": "GHSA-4r9r-4425-74p7", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "cedar-policy", "product": "cedar-java", "versions": [{"status": "affected", "version": "< 4.9.0"}]}], "references": [{"url": "https://github.com/cedar-policy/cedar-java/security/advisories/GHSA-4r9r-4425-74p7", "name": "https://github.com/cedar-policy/cedar-java/security/advisories/GHSA-4r9r-4425-74p7", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. In versions prior to 4.9.0, the EntityIdentifier.equals() has inverted null/self branches which could lead to incorrect equality comparisons. The EntityIdentifier.equals() method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. This issue has been fixed in version 4.9.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-94", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-697", "description": "CWE-697: Incorrect Comparison"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-843", "description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-13T19:28:00.835Z"}}}, "cveMetadata": {"cveId": "CVE-2026-55771", "state": "PUBLISHED", "dateUpdated": "2026-07-14T14:31:41.860Z", "dateReserved": "2026-06-17T14:34:51.881Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-07-13T19:28:00.835Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "cedar-java", "vendor": "cedar-policy", "versions": [{"status": "affected", "version": "< 4.9.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CedarJava is an open source Java implementation of the Cedar policy language, used for fine-grained authorization decisions. In versions prior to 4.9.0, the EntityIdentifier.equals() has inverted null/self branches which could lead to incorrect equality comparisons. The EntityIdentifier.equals() method has inverted logic for null and self-reference checks, returning true for null comparisons and false for self-comparisons. This does not affect Cedar authorization decisions (computed in Rust from JSON), but could affect integrators who perform their own equality checks on entity identifiers. This issue has been fixed in version 4.9.0."}, {"lang": "es", "value": "CedarJava es una implementaci\u00f3n Java de c\u00f3digo abierto del lenguaje de pol\u00edticas Cedar, utilizada para decisiones de autorizaci\u00f3n de grano fino. En versiones anteriores a la 4.9.0, el m\u00e9todo EntityIdentifier.equals() tiene ramas nulas/de autorreferencia invertidas, lo que podr\u00eda llevar a comparaciones de igualdad incorrectas. El m\u00e9todo EntityIdentifier.equals() tiene l\u00f3gica invertida para las comprobaciones de nulo y de autorreferencia, devolviendo verdadero para comparaciones nulas y falso para comparaciones de autorreferencia. Esto no afecta las decisiones de autorizaci\u00f3n de Cedar (calculadas en Rust a partir de JSON), pero podr\u00eda afectar a los integradores que realizan sus propias comprobaciones de igualdad en los identificadores de entidad. Este problema ha sido solucionado en la versi\u00f3n 4.9.0."}], "id": "CVE-2026-55771", "lastModified": "2026-10-24T22:10:00.210", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55771", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-14T14:23:44.626378Z", "version": "2.0.3"}}]}, "published": "2026-07-13T20:16:48.453", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/cedar-policy/cedar-java/security/advisories/GHSA-4r9r-4425-74p7"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-697"}, {"lang": "en", "value": "CWE-843"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.9.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "cedar-java", "source": "cna", "vendor": "cedar-policy"}, "product": "cedar-java", "vendor": "cedar-policy"}], "created": "2026-07-14T13:15:10.624265+00:00", "updated": "2026-07-31T11:30:05.201900+00:00", "vendors": ["cedar-policy", "cedar-policy$PRODUCT$cedar-java"]}