CVE-2026-91864: Apache Neethi · Unthrottled Resource Allocation
Affects Apache NeethiSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 3.2.4 soon.
Data as of 5 Nov 2026, 00:01 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.2.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 21 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade Apache to 3.2.4.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache Neethi | Affected
| Fixed in
|
MavenApache Software Foundation/org.apache.neethi:neethipkg:maven/Apache Software Foundation/org.apache.neethi:neethiOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache Neethi to version 3.2.4 or later to remediate this vulnerability. This version includes the fix that enforces proper size limits on policy assertions to prevent heap exhaustion.
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.