CVE-2026-91865

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

At a glance

Severity: HIGH 7.5
EPSS: EPSS 0.74 % · percentile 54 (2026-10-27)
State: PUBLISHED
Published: 2026-09-21
Updated: 2026-09-21
Assigner: apache
NVD status: Analyzed

Description

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-770

European references

ENISA EUVD · EUVD-2026-83887
GCVE · GCVE-0-2026-91865

Affected configurations (NVD CPE)

cpe:2.3:a:apache:neethi:*:*:*:*:*:*:*:* < 3.2.4

Affected products

Product	Versions
Apache Software Foundation · Apache Neethi	affected 0 < 3.2.4

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD