Dashboard / CVE-2026-43515

CVE-2026-43515

CRITICAL
INFO Priority: 0.11 BB Relevance: 78/100
Published: 2026-05-12 Modified: 2026-10-26 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

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
apache tomcat 7.0.0 – 7.0.109
apache tomcat 8.5.0 – 8.5.100
apache tomcat 9.0.0 – 9.0.118
apache tomcat 10.1.0 – 10.1.55
apache tomcat 11.0.0 – 11.0.22

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

1.22%
Raw Score 0.012210
Percentile 68.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01221
2026-10-28
0.01221

Intelligence Sources

nvd ref →

External Links