CVE-2026-47838GHSA-293Q-567P-WMWQ
Unauthorized User Impersonation when Using X.509 Client Certificates
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 5.7.25, 5.8.27, 6.3.18, 6.4.18, 6.5.10.2, and 1 more
- 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: no
- Technical impact: total
Summary
SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7.0 through 5.7.24; 5.8.0 through 5.8.26; 6.3.0 through 6.3.17; 6.4.0 through 6.4.17; 6.5.0 through 6.5.10.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Spring Spring Security
From 5.7.0 · fixed in 5.7.25; From 5.8.0 · fixed in 5.8.27; From 6.3.0 · fixed in 6.3.18; From 6.4.0 · fixed in 6.4.18; From 6.5.0 · fixed in 6.5.10.2
- org.springframework.security:spring-security-webMaven
From 6.5.0 · fixed in 6.5.11
- org.springframework.security:spring-security-webMaven
From 6.4.0 · through 6.4.13
- org.springframework.security:spring-security-webMaven
From 6.0.0 · through 6.3.10
- org.springframework.security:spring-security-webMaven
From 5.8.0 · through 5.8.16
- org.springframework.security:spring-security-webMaven
through 5.7.14