Apache Tomcat: HTTP/2 request headers not validated
Summary
| CVE | CVE-2026-41293 |
|---|---|
| State | PUBLISHED |
| Assigner | apache |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-12 16:16:17 UTC |
| Updated | 2026-05-12 18:17:22 UTC |
| Description | Improper Input Validation vulnerability 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 10.0.0-M1 through 10.0.27. Older, end of support versions may also be affected. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue. |
Risk And Classification
Problem Types: CWE-20 | CWE-20 CWE-20 Improper Input Validation
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Apache Software Foundation | Apache Tomcat | affected 11.0.0-M1 11.0.21 semver | Not specified |
| CNA | Apache Software Foundation | Apache Tomcat | affected 10.1.0-M1 10.1.54 semver | Not specified |
| CNA | Apache Software Foundation | Apache Tomcat | affected 9.0.0.M1 9.0.117 semver | Not specified |
| CNA | Apache Software Foundation | Apache Tomcat | affected 10.0.0-M1 10.0.27 semver | Not specified |
| CNA | Apache Software Foundation | Apache Tomcat | affected 8.5.0 8.5.100 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.openwall.com/lists/oss-security/2026/05/12/13 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| lists.apache.org/thread/qwg0q16z7xkb2qrr853wdll5531mvl1r | [email protected] | lists.apache.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Dawit Jeong (@dawitngoliath) (en)
There are currently no legacy QID mappings associated with this CVE.