Dashboard / CVE-2026-55276

CVE-2026-55276

CRITICAL
INFO Priority: 0.06 BB Relevance: 78/100
Published: 2026-06-29 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119 which fixes the issue.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
apache tomcat < 9.0.119
apache tomcat 10.1.0 – 10.1.56
apache tomcat 11.0.0 – 11.0.23

References & Advisories (2)

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.61%
Raw Score 0.006070
Percentile 48.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00607
2026-10-28
0.00607

Intelligence Sources

nvd ref →

External Links