CVE-2026-85532: Apache WSS4J

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Apache WSS4J accepted attacker-controlled derived-key lengths and offsets without adequate bounds. This could permit cryptographically weak keys or excessive CPU and memory consumption when processing crafted WS-Security messages. The fixes enforce a minimum key length of 16 bytes, a maximum length of 512 bytes, and a maximum offset of 4096 bytes. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.

Affected products

• Apache WSS4J: before 2.4.4 (fixed in 2.4.4); from 3.0.0, before 3.0.6 (fixed in 3.0.6); from 4.0.0, before 4.0.2 (fixed in 4.0.2)

Published 2026-09-30. Last modified 2026-10-02.