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High 7.5Published Sep 21, 2026

CVE-2026-91865Apache Neethi: Crafted policy references cause exponential expansion during normalization leading to denial of service

Updated under an hour ago ()

Does this affect you?

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.

A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references exponentially during normalization, consuming huge amounts of CPU and memory (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-770
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

  • vendor-advisory, mailing-list
  • mailing-list, third-party-advisory

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.

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