CVE-2026-91864 — HIGH (7.5)

Q: How severe is CVE-2026-91864?

CVE-2026-91864 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-91864?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Neethi.

Vulnerability Description

A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into memory without counting it against its size limits, exhausting the heap (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Neethi	< 3.2.4

Related Weaknesses (CWE)

CWE-770

References

https://lists.apache.org/thread/400kbynbyhqhsjkv1yz251jm9wdz8z69Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/09/18/11Mailing ListThird Party Advisory

FAQ

What is CVE-2026-91864?

CVE-2026-91864 is a vulnerability with a CVSS score of 7.5 (HIGH). A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into memory without counting it against its size limits, exhausting the heap (denial of...

How severe is CVE-2026-91864?

CVE-2026-91864 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-91864?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Neethi.