CVE-2026-65182

Apache Tomcat: Bypass longest prefix security constraint

At a glance

Severity: CRITICAL 9.1
EPSS: EPSS 0.54 % · percentile 45 (2026-10-27)
State: PUBLISHED
Published: 2026-08-25
Updated: 2026-08-26
Assigner: apache
NVD status: Analyzed

Description

Improper Access Control, Incorrect Authorization vulnerability in Apache Tomcat leads to security constraint bypass if a constraint for a longer path is specified before a more restrictive constraint for a shorter sub-path. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.25, 10.1.58, 9.0.121, which fixes the issue.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	CISA-ADP
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

Advisories

GHSA-gcx9-497g-6cp6 — Apache Tomcat has an Improper Access Control, Incorrect Authorization vulnerability

European references

ENISA EUVD · EUVD-2026-66124
GCVE · GCVE-0-2026-65182

CERT-FR advisories

CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-1336 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-1256 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-1249 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-1083 — Multiples vulnérabilités dans Apache Tomcat · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 7.0.0 ≤ 7.0.109
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 8.5.0 < 9.0.121
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 10.1.0 < 10.1.58
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 11.0.0 < 11.0.25

Affected products

Product	Versions
Apache Software Foundation · Apache Tomcat	affected 11.0.0-M1 ≤ 11.0.24 ; affected 10.1.0-M1 ≤ 10.1.57 ; affected 9.0.0.M1 ≤ 9.0.120 ; affected 8.5.0 ≤ 8.5.100 ; affected 7.0.0 ≤ 7.0.109 ; unknown 0 < 7.0.0

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
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
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