CVE-2026-34500

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2026-04-09 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Unchanged
C: High
I: Low
A: None

Description

CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled and FFM is used in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fixes the issue.

Weakness Classification (1)

Affected Software (16)

VendorProductVersion
apache tomcat 9.0.92 – 9.0.117
apache tomcat 10.1.22 – 10.1.54
apache tomcat 11.0.1 – 11.0.21
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0
apache tomcat 11.0.0

References & Advisories (2)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS — Exploitation Probability

0.45%
Raw Score 0.004500
Percentile 39.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00450
2026-10-28
0.00450

Intelligence Sources

nvd ref →