{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48717", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-22T18:47:27.755Z", "datePublished": "2026-09-15T09:57:53.707Z", "dateUpdated": "2026-09-15T09:57:53.707Z"}, "containers": {"cna": {"title": "OpenAM OAuth Authorization Bypass via PKCE Challenge", "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "lang": "en", "description": "CWE-285: Improper Authorization", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4v2w-2wqp-mc85", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4v2w-2wqp-mc85"}, {"name": "https://github.com/OpenIdentityPlatform/OpenAM/commit/97a34d9fee17395e8e052bfc45eb5855f436153e", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenAM/commit/97a34d9fee17395e8e052bfc45eb5855f436153e"}, {"name": "https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1"}], "affected": [{"vendor": "OpenIdentityPlatform", "product": "OpenAM", "versions": [{"version": "< 16.1.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T09:57:53.707Z"}, "descriptions": [{"lang": "en", "value": "Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, AuthorizationCodeGrantTypeHandler requires a code_verifier only when the realm-wide codeVerifierEnforced setting is enabled, even when an authorization code stores a code_challenge. Because that setting is disabled by default, an attacker who intercepts a PKCE-protected authorization code can omit code_verifier and redeem the code, while an explicitly incorrect verifier is rejected. Public clients are directly affected, and confidential-client exploitation additionally requires client authentication material or another redemption context. This issue is fixed in version 16.1.1."}], "source": {"advisory": "GHSA-4v2w-2wqp-mc85", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "OpenAM", "vendor": "OpenIdentityPlatform", "versions": [{"status": "affected", "version": "< 16.1.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, AuthorizationCodeGrantTypeHandler requires a code_verifier only when the realm-wide codeVerifierEnforced setting is enabled, even when an authorization code stores a code_challenge. Because that setting is disabled by default, an attacker who intercepts a PKCE-protected authorization code can omit code_verifier and redeem the code, while an explicitly incorrect verifier is rejected. Public clients are directly affected, and confidential-client exploitation additionally requires client authentication material or another redemption context. This issue is fixed in version 16.1.1."}], "id": "CVE-2026-48717", "lastModified": "2026-09-15T10:17:05.377", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.1, "baseSeverity": "CRITICAL", "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": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T10:17:05.377", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenAM/commit/97a34d9fee17395e8e052bfc45eb5855f436153e"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4v2w-2wqp-mc85"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-285"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,16.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenAM", "source": "cna", "vendor": "OpenIdentityPlatform"}, "product": "openam", "vendor": "openidentityplatform"}], "created": "2026-09-15T11:45:17.280961+00:00", "updated": "2026-09-15T11:45:17.280979+00:00", "vendors": ["openidentityplatform", "openidentityplatform$PRODUCT$openam"]}