CVEvulnerability
CVE-2026-95616
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-30
- Last modified
- 2026-10-06
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-190
Description
An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.
Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.
Affected configurations
• apache wss4j (< 2.4.4)
• apache wss4j (>= 3.0.0 < 3.0.6)
• apache wss4j (>= 4.0.0 < 4.0.2)
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://lists.apache.org/thread.html/sdf0fsphkg4qbj7nh2brjgwvcmd67hct Vendor Advisory, Mailing List
- http://www.openwall.com/lists/oss-security/2026/09/30/14 Mailing List, Third Party Advisory