All vulnerabilities
CVE-2026-85532

Apache WSS4J: Insufficient Validation of Derived-Key Parameters

Apache Software Foundation Apache WSS4J
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.55%Chance of exploitation activity in the next 30 days, higher than 45% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.0.2Also 3.0.6, 2.4.4CVE List
Published30 Sep 2026Updated 30 Sep 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 3

  • Apache WSS4Jaffected: 4.0.0 before 4.0.2CVE List
  • Apache WSS4Jaffected: 3.0.0 before 3.0.6CVE List
  • Apache WSS4Jaffected: all versions before 2.4.4CVE List

References 1