CRITICAL

CVE-2026-65182

CVSS v3

9.1

CRITICAL

EPSS Score

0.5 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

org.apache.tomcat:tomcatMavenfrom 9.0.0-M1 · fixed in 9.0.121and 2 other packages
tomcatBitnamiall versions · fixed in 9.0.121

Vendor advisories

CVE-2026-65182 Red Hat Product Security110 products fixed · 65 known affected
tomcat: Apache Tomcat: Security constraint bypass due to improper access control
tomcat as a component of Red Hat Enterprise Linux 10 · tomcat-admin-webapps as a component of Red Hat Enterprise Linux 10 · tomcat-docs-webapp as a component of Red Hat Enterprise Linux 10
RHSA-2026:76952 Red Hat Product Security33 products fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 7.0.2 release and security update
RHSA-2026:76956 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 7.0.2 release and security update
RHSA-2026:73981 Red Hat Product Security33 products fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.5 release and security update
RHSA-2026:73982 Red Hat Product Security1 product fixed
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.5 release and security update
RHSA-2026:63137 Red Hat Product Security21 products fixed
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

1 more advisory

Full record on NVD

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Published: 2026-08-25
Last Modified: 2026-08-26

Frequently asked questions

What is CVE-2026-65182?

Is CVE-2026-65182 actively exploited?

Active exploitation of CVE-2026-65182 has not been confirmed. Its EPSS score was 0.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-65182?

CVE-2026-65182 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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