CVE-2026-41284
HIGH7.5EPSS 0.05%Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling
Published: 5/12/2026Modified: 5/19/2026
Description
Versions Affected: Apache Tomcat 11.0.0-M1 to 11.0.21 Apache Tomcat 10.1.0-M1 to 10.1.54 Apache Tomcat 9.0.0.M1 to 9.0.117 Older, unsupported versions may also be affected Description: No limit was enforced on the request body for WebDAV LOCK or PROPFIND requests which were available to unauthenticated users. Mitigation: Users of the affected versions should apply one of the following mitigations: - Upgrade to Apache Tomcat 11.0.22 or later - Upgrade to Apache Tomcat 10.1.55 or later - Upgrade to Apache Tomcat 9.0.118 or later Credit: This issue was identified by Dariusz Gońda
Affected packages (7)
- Bitnami/tomcat>= 10.1.0, < 10.1.55, >= 11.0.0, < 11.0.22, >= 9.0.0, < 9.0.118
- Debian/tomcat10from 0
- Debian/tomcat11from 0
- Debian/tomcat9from 0, < 9.0.70-2
- Maven/org.apache.tomcat.embed:tomcat-embed-corefrom 0, < 9.0.118
- Maven/org.apache.tomcat:tomcatfrom 0, < 9.0.118
- Maven/org.apache.tomcat:tomcat-catalinafrom 0, < 9.0.118
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-41284
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-41284
- PATCHhttps://github.com/apache/tomcat
- WEBhttps://github.com/apache/tomcat/commit/17dacd9aa48628da2eba37a9ab743c0b6c71685c
- WEBhttps://github.com/apache/tomcat/commit/a96fffd18487a29c0a30d36f00cb2b2d91f6d42c
- WEBhttps://github.com/apache/tomcat/commit/b3d1c1c239142e806be0b7329d304b94a58913ed
- WEBhttps://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc
- WEBhttps://tomcat.apache.org/security-10.html
- WEBhttps://tomcat.apache.org/security-11.html
- WEBhttps://tomcat.apache.org/security-9.html
- WEBhttp://www.openwall.com/lists/oss-security/2026/05/12/12