CVE-2026-91863: high-severity vulnerability in Apache Neethi
Apache Neethi: Uncontrolled recursion while parsing crafted WS-Policy documents allows denial of service
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.8%
A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service).
Users are recommended to upgrade to version 3.2.4, which fixes this issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Apache Software Foundation · Apache NeethiRelated CVEs — Apache Neethi
In the same product, most dangerous first.
CVE-2026-66143HIGHApache Neethi: Missing global alternative-output budget across policy computation pathsEPSS 0.9%CVE-2026-42403HIGHApache Neethi: Circular Policy Reference Infinite LoopEPSS 0.8%CVE-2026-91866HIGHApache Neethi: Crafted policies cause unbounded work during intersection leading to denial of serviceEPSS 0.7%CVE-2026-91865HIGHApache Neethi: Crafted policy references cause exponential expansion during normalization leading to denial of serviceEPSS 0.7%CVE-2026-91864HIGHApache Neethi: Crafted WS-Policy documents bypass element/attribute limits causing memory exhaustionEPSS 0.7%CVE-2026-66144HIGHApache Neethi: Remote PolicyReference fetch lacks resource boundsEPSS 0.7%