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CVE-2026-95616

Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Apache Software Foundation / Apache WSS4Jaffected 4.0.0 before 4.0.2; affected 3.0.0 before 3.0.6; affected 0 before 2.4.4

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.