Vulnerability details
CVE-2026-43515
Apache Software Foundation Apache Tomcat
Apache Tomcat: Security constraints not correctly applied
CVSS 3.1
9.1Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.1Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | v < 7.0.0 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 10.1.0-M1 ≤ v ≤ 10.1.54 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 ≤ v ≤ 11.0.21 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 7.0.0 ≤ v ≤ 7.0.109 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 8.5.0 ≤ v ≤ 8.5.100 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 9.0.0.M1 ≤ v ≤ 9.0.117 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-05-12
- Last updated
- 2026-06-04
- State
- Published
- Assigner (CNA)
- apache
Exploit prediction (EPSS)
1.22%
Probability of exploitation in 30 days
68.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-285Improper Authorization