What is CVE-2026-91864?

CVE-2026-91864 is a high-severity vulnerability in Apache Software Foundation Neethi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-09-21.

How severe is CVE-2026-91864?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Apache Software Foundation Neethi

CVE-2026-91864

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 v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Apache Software Foundation Neethi

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security@apache.org (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-91864?: CVE-2026-91864 is a high-severity vulnerability in Apache Software Foundation Neethi, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-09-21.
How severe is CVE-2026-91864?: High severity. CVSS v3 base score is 7.5 out of 10.