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CVE Vulnerability Details :
CVE-2026-43515
PUBLISHED
More InfoOfficial Page
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
View Known Exploited Vulnerability (KEV) details
Published At-12 May, 2026 | 15:33
Updated At-14 May, 2026 | 19:53
Rejected At-
▼CVE Numbering Authority (CNA)
Apache Tomcat: Security constraints not correctly applied

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.

Affected Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Tomcat
Default Status
unaffected
Versions
Affected
  • From 11.0.0-M1 through 11.0.21 (semver)
  • From 10.1.0-M1 through 10.1.54 (semver)
  • From 9.0.0.M1 through 9.0.117 (semver)
  • From 8.5.0 through 8.5.100 (semver)
  • From 7.0.0 through 7.0.109 (semver)

unknown

  • From 0 before 7.00 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-285CWE-285 Improper Authorization
Type: CWE
CWE ID: CWE-285
Description: CWE-285 Improper Authorization
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Textual description of severity
text:
moderate
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb
vendor-advisory
Hyperlink: https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb
Resource:
vendor-advisory
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2026/05/12/11
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2026/05/12/11
Resource: N/A
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found