CVE-2026-41293— Apache Tomcat: HTTP/2 request headers not validated
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1≤ 11.0.21 | affected |
10.1.0-M1≤ 10.1.54 | affected | ||
9.0.0.M1≤ 9.0.117 | affected | ||
10.0.0-M1≤ 10.0.27 | affected | ||
8.5.0≤ 8.5.100 | affected |
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I. Basic Information for CVE-2026-41293
Vulnerability Information
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Vulnerability Title
Apache Tomcat: HTTP/2 request headers not validated
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。用于实现对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 11.0.0-M1版本至11.0.21版本、10.1.0-M1版本至10.1.54版本、9.0.0.M1版本至9.0.117版本和10.0.0-M1版本至10.0.27版本存在输入验证错误漏洞，该漏洞源于输入验证不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 ~ 11.0.21 | - |
II. Public POCs for CVE-2026-41293
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Apache Software Foundation · 2026-05-12 · 7 CVEs total
| CVE-2026-41284 | Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling | |
| CVE-2026-42498 | Apache Tomcat: WebSocket authentication header exposure | |
| CVE-2026-43512 | Apache Tomcat: Digest authenticator will authenticate any unknown user | |
| CVE-2026-43513 | Apache Tomcat: LockOutRealm treats user names as case-sensitive | |
| CVE-2026-43514 | Apache Tomcat: AJP secret compared in non-constant time | |
| CVE-2026-43515 | Apache Tomcat: Security constraints not correctly applied |
IV. Related Vulnerabilities
Same product: Apache Tomcat
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Apache Tomcat: Security constraints not correctly applied - CVE-2026-43514
Apache Tomcat: AJP secret compared in non-constant time - CVE-2026-43513
Apache Tomcat: LockOutRealm treats user names as case-sensit - CVE-2026-43512
Apache Tomcat: Digest authenticator will authenticate any un - CVE-2026-42498
Apache Tomcat: WebSocket authentication header exposure
Same vendor: Apache Software Foundation
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Apache Tomcat: Security constraints not correctly applied - CVE-2026-43514
Apache Tomcat: AJP secret compared in non-constant time - CVE-2026-43513
Apache Tomcat: LockOutRealm treats user names as case-sensit
Same weakness: CWE-20
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AMD多款产品 输入验证错误漏洞
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