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Message-ID: <87bea380-400a-4fe2-8984-908f67ae7b97@apache.org>
Date: Mon, 27 Oct 2025 17:35:09 +0000
From: Mark Thomas <markt@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2025-61795: Apache Tomcat: Delayed cleaning of multi-part upload
temporary files may lead to DoS
Severity: low
Affected versions:
- Apache Tomcat 11.0.0-M1 through 11.0.11
- Apache Tomcat 10.1.0-M1 through 10.1.46
- Apache Tomcat 9.0.0.M1 through 9.0.109
- Apache Tomcat 8.5.0 through 8.5.100
- Apache Tomcat 3 before 8.5.0 unknown
Description:
Improper Resource Shutdown or Release vulnerability in Apache Tomcat.
If an error occurred (including exceeding limits) during the processing
of a multipart upload, temporary copies of the uploaded parts written to
disc were not cleaned up immediately but left for the garbage collection
process to delete. Depending on JVM settings, application memory usage
and application load, it was possible that space for the temporary
copies of uploaded parts would be filled faster than GC cleared it,
leading to a DoS.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.11, from
10.1.0-M1 through 10.1.46, from 9.0.0.M1 through 9.0.109.
The following versions were EOL at the time the CVE was created but are
known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions
may also be affected.
Users are recommended to upgrade to version 11.0.12 or later, 10.1.47 or
later or 9.0.110 or later which fixes the issue.
Credit:
sw0rd1ight (https://github.com/sw0rd1ight) (finder)
References:
https://lists.apache.org/thread/wm9mx8brmx9g4zpywm06ryrtvd3160pp
https://tomcat.apache.org/
https://www.cve.org/CVERecord?id=CVE-2025-61795
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