{"cve":"CVE-2026-50627","nvd":{"published":"2026-06-12T10:16:22.587","modified":"2026-10-26T11:10:00.157","status":"Modified","description":"The JwtAccessTokenValidator class in Apache CXF fails to validate the 'aud' (Audience) claims of incoming JWT access tokens. This allows a JWT issued for one Resource Server to be successfully replayed against a completely different Resource Server, leading to Token Confusion/Routing attacks. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","score":9.1},"cwes":["CWE-289","CWE-303"],"references":["https://lists.apache.org/thread/0jfzz9q992957b99tw7hodcqjfyxwb1m","http://www.openwall.com/lists/oss-security/2026/06/11/4","https://access.redhat.com/errata/RHSA-2026:37390","https://access.redhat.com/security/cve/CVE-2026-50627","https://bugzilla.redhat.com/show_bug.cgi?id=2488298"],"products":["apache:cxf"],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-50627","score":0.04524,"percentile":0.91471,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-9mrv-8pvf-hf4m","url":"https://osv.dev/vulnerability/GHSA-9mrv-8pvf-hf4m","summary":"Apache CXF OAuth2 Missing JWT Audience and Issuer Validation in Access Token Validator","modified":"2026-08-20T18:48:07.967530Z","packages":[{"ecosystem":"Maven","name":"org.apache.cxf:cxf-rt-rs-security-oauth2","purl":"pkg:maven/org.apache.cxf/cxf-rt-rs-security-oauth2","ranges":[">=4.2.0 <4.2.2"],"fixed":["4.2.2"]},{"ecosystem":"Maven","name":"org.apache.cxf:cxf-rt-rs-security-oauth2","purl":"pkg:maven/org.apache.cxf/cxf-rt-rs-security-oauth2","ranges":["<4.1.7"],"fixed":["4.1.7"]}]}],"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."]}