CVE-2026-91863
Last modified
CVE-2026-91863 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Neethi | < 3.2.4 |
References
- https://lists.apache.org/thread/72kxj71lvrqqx90xxqqctvpbw0t8mpxwMailing List, Vendor Advisory
- https://www.openwall.com/lists/oss-security/2026/09/18/10Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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Scan your code nowSource: NVD / NIST