CVE-2026-50623: medium-severity vulnerability in Apache CXF
Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.4%
An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService in Apache CXF. Due to a missing 'throw' keyword in the security context check, the introspection endpoint (/services/oauth2/introspect) can be accessed by any unauthenticated network attacker. However note that this is a safeguard only in the case that someone forgot to enable authentication on the service. Users are recommended to upgrade to version 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
Apache Software Foundation · Apache CXFRelated CVEs — Apache CXF
In the same product, most dangerous first.
CVE-2020-13954—Apache CXF Reflected XSS in the services listing page via the styleSheetPathEPSS 40.9%CVE-2017-5653—CVE-2017-5653EPSS 11.2%CVE-2018-8039—CVE-2018-8039EPSS 8.2%CVE-2016-6812—CVE-2016-6812EPSS 7.5%CVE-2016-8739—CVE-2016-8739EPSS 7.3%CVE-2021-30468—Apache CXF Denial of service vulnerability in parsing JSON via JsonMapObjectReaderWriterEPSS 7.0%