{"cve":"CVE-2026-48717","nvd":{"published":"2026-09-15T10:17:05.377","modified":"2026-09-23T18:21:42.327","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"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","score":9.1},"cvss_v3":null,"cwes":["CWE-285"],"references":["https://github.com/OpenIdentityPlatform/OpenAM/commit/97a34d9fee17395e8e052bfc45eb5855f436153e","https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1","https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4v2w-2wqp-mc85"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-48717","score":0.00529,"percentile":0.4478,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4v2w-2wqp-mc85","url":"https://osv.dev/vulnerability/GHSA-4v2w-2wqp-mc85","summary":"OpenAM OAuth Authorization Bypass via PKCE Challenge","modified":"2026-06-29T18:11:31.479876Z","packages":[{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-oauth2","purl":"pkg:maven/org.openidentityplatform.openam/openam-oauth2","ranges":["<16.1.1"],"fixed":["16.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}