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High 7.5Published Aug 3, 2026
CVE-2026-59644In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-834
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Aug 31, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
bouncycastle bc-java bouncycastle:bc-java | before 1.85 | NVD |
References
- https://github.com/bcgit/bc-java/commit/610d8757d855afe197df0de6d831cb75c81e3b9fpatch
- https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059644third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.