CVE-2026-47838
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Unauthorized User Impersonation when Using X.509 Client Certificates
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Spring Security
- Vendor
- Spring
- Product
- Spring Security
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.7.0 | affected | custom | 5.7.25 | Unavailable | None listed |
| 5.8.0 | affected | custom | 5.8.27 | Unavailable | None listed |
| 6.3.0 | affected | custom | 6.3.18 | Unavailable | None listed |
| 6.4.0 | affected | custom | 6.4.18 | Unavailable | None listed |
| 6.5.0 | affected | custom | 6.5.10.2 | Unavailable | None listed |