9.3
Critical
CVE-2026-59638 In Bouncy Castle for Java before 1.85, JSSE hostname verifier CN-fallback enabled by default despite documented opt-in
Description
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).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| BC-JAVA 1.61 | 1.61 → < 1.85 | 1.85 |
| BC-LTS-JAVA 2.73 | 2.73.0 → < 2.73.12 | 2.73.12 |
| BC-FJA 2.1 | 2.1.0 → < 2.1.24 | 2.1.24 |
| BC-FJA 2.0 | 2.0.0 → < 2.0.24 | 2.0.24 |
| BC-FJA 1.0 | 1.0.7 → < 1.0.24 | 1.0.24 |
References
- github.com github.com
- github.com github.com
- github.com github.com
Timeline
- Published
- Last modified
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9.2
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