Integer Overflow or Wraparound Affecting org.apache.wss4j:wss4j-ws-security-common package, versions [,2.4.4)[3.0.0,3.0.6)[4.0.0,4.0.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JAVA-ORGAPACHEWSS4J-21716582
- published26 Oct 2026
- disclosed30 Sept 2026
- creditUnknown
Introduced: 30 Sep 2026
NewCVE-2026-95616 (opens in a new tab)How to fix?
Upgrade org.apache.wss4j:wss4j-ws-security-common to version 2.4.4, 3.0.6, 4.0.2 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the getBytes method in DERDecoder. An unauthenticated attacker can send a SOAP message containing an X.509 certificate whose SubjectKeyIdentifier declares a length of 0x7FFFFFFF; the vulnerable check pos + length > arr.length can overflow, allowing an eleven-byte extension to trigger a 2 GB allocation during signature key-reference resolution, before the message is authenticated. Repeated requests can exhaust server memory and deny service to users.