CVE-2026-59644
Fixed in a distro release EPSS <1%CVSS 8.7
In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.
Products: Legion of the Bouncy Castle Inc. BC-JAVA
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | bouncycastle | no fix |
| Debian 13 | bouncycastle | no fix |
| Debian 14 | bouncycastle | 1.86-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server 16.0 | bouncycastle | 1.85-160000.1.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | bouncycastle | 1.85-150200.3.38.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | bouncycastle | 1.85-160000.1.1 |
| Ubuntu 26.04 LTS | bouncycastle | no fix |
| Ubuntu 26.10 | bouncycastle | no fix |
| Ubuntu Pro 16.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 18.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 20.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 22.04 LTS | bouncycastle | no fix |
| Ubuntu Pro 24.04 LTS | bouncycastle | no fix |
| openSUSE Leap 16.0 | bouncycastle | 1.85-160000.1.1 |
| openSUSE Tumbleweed | bouncycastle | 1.85-1.1 |