CVE-2026-87830

CRITICALCVSS 9.1

Description

In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual XML element path. A remote SOAP peer may therefore send a required element without the expected signature or encryption. Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.

Timeline

Published:September 30th, 2026 12:17 PM

Last modified:September 30th, 2026 8:17 PM

CVSS Scoring

CVSS v3: 9.1 (CRITICAL)

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

Weaknesses (CWE)

CWE-917

References & Reports

Advisories, patches, and third-party reports

https://lists.apache.org/thread.html/lwlozb1x20d16f9dnyvoygc9rrhzq2vn
http://www.openwall.com/lists/oss-security/2026/09/30/9

Source: NIST NVD · Data may lag official sources by up to one minute