CVE-2026-12816
CVE-2026-12816 · IESEngine stream-mode MAC forgery via length-dependent KDF split
This page contains facts from public vulnerability sources. Check the original advisory before updating.
In Bouncy Castle for Java before 1.85, IESEngine stream-mode MAC forgery via length-dependent KDF split. This issue also affects Bouncy Castle for Java LTS before 2.73.12.
CVSS 8.7 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
bc-java
- Versions
- ≥ 0, < 1.85: Affected (maven)
Update to 1.85
bc-lts-java
- Versions
- ≥ 2.73.0, < 2.73.12: Affected (maven)
Update to 2.73.12
bouncycastle Debian:12
- Versions
- 1.72-2
- 1.77-1
- 1.80-1
- 1.80-2
- 1.80-3
- 1.86-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Debian:13
- Versions
- 1.80-3
- 1.86-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Debian:14
- Versions
- 1.80-3
- Affected ranges
- ECOSYSTEM: < 1.86-1
Update to 1.86-1
bouncycastle Ubuntu:Pro:16.04:LTS
- Versions
- 1.49+dfsg-3ubuntu1
- 1.51-4ubuntu1
- 1.51-4ubuntu1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:Pro:18.04:LTS
- Versions
- 1.57-1
- 1.58-1
- 1.59-1
- 1.59-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:Pro:20.04:LTS
- Versions
- 1.61-1
- 1.61-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:Pro:22.04:LTS
- Versions
- 1.68-2
- 1.68-4
- 1.68-5
- 1.68-5ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:Pro:24.04:LTS
- Versions
- 1.72-2
- 1.77-1
- 1.77-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:26.10
- Versions
- 1.80-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
bouncycastle Ubuntu:26.04:LTS
- Versions
- 1.80-3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published