CVE Watch6 oct 2026

CVE-2026-95616

An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP me

CVSS

7.5

Alto

EPSS

0.4%

p34

KEV

—

Exploit Today

0-100

Publicado: 30 sept 2026 · Última mod.: 6 oct 2026 · CWE-190

EPSS · 30d

0.3%EPSS · 30 días0.4%

2026-10-012026-10-20

Descripción técnica

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.

Referencias oficiales

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