CVE-2026-50629GHSA-F8P7-H97Q-7VX7
Apache CXF: OAuth2: Log Injection via Unsanitized Client Identifier
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- The rating the maker of the software gives it. Shown when it differs from the CVSS level.What do these mean? →
- Low (apache)
- Fix
- Fixed in 4.2.2, 4.1.7, 3.6.12
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- org.apache.cxf:cxf-rt-rs-security-oauth2
From 4.2.0 · fixed in 4.2.2; From 4.0.0 · fixed in 4.1.7; fixed in 3.6.12
- org.apache.cxf:cxf-rt-rs-security-oauth2Maven
From 4.2.0 · fixed in 4.2.2
- org.apache.cxf:cxf-rt-rs-security-oauth2Maven
fixed in 4.1.7