CVE catalog
CVE-2026-50623
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 (/servic
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.37% · Oct 25, 2026
A flaw was found in Apache CXF. An authentication bypass vulnerability exists in the OAuth2 TokenIntrospectionService. Due to a missing 'throw' keyword in the security context check, an unauthenticated network attacker can access the introspection endpoint. This could lead to unauthorized access if authentication on the service is not properly configured. org.apache.cxf/cxf-rt-rs-security-oauth2: Apache CXF: Authentication Bypass in OAuth2 TokenIntrospectionService The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | cxf | Not reported | 4.1.7 | fixed |
| Cpe | cxf | Not reported | 4.2.2 | fixed |
| Maven | org.apache.cxf:cxf-rt-rs-security-oauth2 | Not reported | 4.1.7 | fixed |
| Cpe | cxf | Not reported | 4.2.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | cxf | cpe | Not reported | 4.1.7 | Not reported | Not reported | Not reported |
| Cpe | cxf | cpe | Not reported | 4.2.2 | Not reported | Not reported | Not reported |
| Maven | org.apache.cxf:cxf-rt-rs-security-oauth2 | maven | Not reported | 4.1.7 | Not reported | GHSA-542G-M3FX-Q86F | Not reported |
| Cpe | cxf | cpe | Not reported | 4.2.2 | Not reported | NVD-CVE-2026-50623 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/06/11/3]
- [https://github.com/advisories/GHSA-542g-m3fx-q86f]
- [https://lists.apache.org/thread/ydzj8m5mqmjy13xgyj9mkk9hfff63qq7]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-50623]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50623.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1895.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]