{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105119","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-03T12:04:36.964Z","datePublished":"2026-10-03T12:14:43.643Z","dateUpdated":"2026-10-03T12:14:43.643Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-03T12:14:43.643Z"},"datePublic":"2026-09-18T00:00:00.000Z","title":"OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows","descriptions":[{"lang":"en","value":"OpenAM before 16.1.3 applies its OAuth2 Provider PKCE enforcement only to authorization requests whose response_type is exactly code, so codes issued through OpenID Connect hybrid flows (code token, code id_token, code token id_token) carry no bound challenge. An attacker who intercepts such a code can redeem it for a public client's tokens with any non-empty code_verifier."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Authorization","cweId":"CWE-285","type":"CWE"}]}],"affected":[{"vendor":"OpenIdentityPlatform","product":"OpenAM","defaultStatus":"unaffected","packageURL":"pkg:maven/org.openidentityplatform.openam/openam-oauth2","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"16.1.3"},{"version":"16.1.3","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*","versionEndExcluding":"16.1.3"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.6,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-5p2f-7vcr-6vfh","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-5p2f-7vcr-6vfh)"},{"name":"VulnCheck Advisory: OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openam-before-16.1.3-pkce-enforcement-bypass-via-oauth-2.0-hybrid-flows"}],"credits":[{"lang":"en","value":"arpitjain099","type":"reporter"},{"lang":"en","value":"maximthomas","type":"finder"},{"lang":"en","value":"tsujiguchitky","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}