High severity · published May 12, 2026
CVE-2026-41284
Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling
7.5
CVSS
0.8%
EPSS
No
On KEV
Description
Allocation of Resources Without Limits or Throttling 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.
Older, unsupported versions may also be affected.
Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TO
Tomcat · Apache
11.0.0-M1 through 11.0.21; 10.1.0-M1 through 10.1.54; 9.0.0.M1 through 9.0.117; 10.0.0-M1 through 10.0.27; 8.5.0 through 8.5.100; 4.0 through 7.0.109 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-41284
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-41284
Mailing List
https://lists.apache.org/thread/2nvqjr7ovjmvx2vbhb7s61ycd5msc8qc
Mailing List
http://www.openwall.com/lists/oss-security/2026/05/12/12
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