CVE-2026-59644CWE-834

CVE-2026-59644

High · published August 3, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
41.4
In the wild
Unconfirmed
What it is

In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00493 · 41.4th percentile
Weakness
CWE-834 · Excessive Iteration
Published
2026-08-03T05:16Z
Affected products (1)
ProductVersionsFixed in
bouncycastle/bc-java< 1.851.85
References (2)
https://github.com/bcgit/bc-java/commit/610d8757d855afe197df0de6d831cb75c81e3b9f · 91579145-5d7b-4cc5-b925-a0262ff19630https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059644 · 91579145-5d7b-4cc5-b925-a0262ff19630
EPSS history
Timeline
  • 03 AUG 00:50Z
    MLS hash-ratchet honours arbitrary 32-bit generation counter from sender
    cvelistv5