High 7.5Published Sep 21, 2026

CVE-2026-91863Apache Neethi: Uncontrolled recursion while parsing crafted WS-Policy documents allows denial of service

Updated under an hour ago (Oct 27, 2026, 9:30 PM ET)

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It affects Apache Software Foundation Apache Neethi and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apache Software Foundation Apache Neethi

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-674
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Analyzed
Record last updated: Sep 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Neethi apache_software_foundation:apache_neethi (from the name)	before 3.2.4	CNA record
apache neethi apache:neethi	before 3.2.4	NVD

References

References

https://lists.apache.org/thread/72kxj71lvrqqx90xxqqctvpbw0t8mpxw	vendor-advisory, mailing-list
http://www.openwall.com/lists/oss-security/2026/09/18/10	mailing-list, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.