CVE-2026-59638
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)
JSSE hostname verifier CN-fallback enabled by default despite documented opt-in
In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series).
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.
BC-JAVA
- Vendor
- Legion of the Bouncy Castle Inc.
- Product
- BC-JAVA
- Platforms
- all
- Default status
unaffected- Package
- bctls
- Package collection
- https://www.bouncycastle.org/download/bouncy-castle-java/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.61 | affected | maven | 1.85 | Unavailable | None listed |
BC-LTS-JAVA
- Vendor
- Legion of the Bouncy Castle Inc.
- Product
- BC-LTS-JAVA
- Platforms
- all
- Default status
unaffected- Package
- bctls-lts8on
- Package collection
- https://www.bouncycastle.org/download/bouncy-castle-java-lts/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.73.0 | affected | maven | 2.73.12 | Unavailable | None listed |
BC-FJA
- Vendor
- Legion of the Bouncy Castle Inc.
- Product
- BC-FJA
- Platforms
- all
- Default status
unaffected- Package
- bctls-fips
- Package collection
- https://www.bouncycastle.org/download/bouncy-castle-java-fips/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.0.7 | affected | maven | 1.0.24 | Unavailable | None listed |
| 2.0.0 | affected | maven | 2.0.24 | Unavailable | None listed |
| 2.1.0 | affected | maven | 2.1.24 | Unavailable | None listed |