CVE-2026-85532

7.5 HIGH 0.5% exploit odds Fix listed Other Server

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.5% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-09-30 12:17 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-02 20:14 UTC Last updatedMost recent change to the record

Details

Published: 2026-09-30 12:17 UTC
Last modified: 2026-10-02 20:14 UTC
Exploit probability: 0.5% · EPSS, next 30 days
Weakness: CWE-20 · Improper input validation
Record status: Analyzed

Affected

Apache wss4j < 2.4.4
Apache wss4j < 3.0.6
Apache wss4j < 4.0.2

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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Fix and advisories

https://lists.apache.org/thread.html/7jllcpbf4nbzhdp2vchz5yplnl5w6vd6

References

NVD record · CVE.org record