Apache Tomcat Vulnerable to Improper Resource Shutdown or Release
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.tomcat.embed:tomcat-embed-core | >= 11.0.0-M1, < 11.0.12, >= 10.1.0-M1, < 10.1.47, >= 9.0.0.M1, < 9.0.110, >= 8.5.0, <= 8.5.100 | 11.0.12, 10.1.47, 9.0.110 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat | >= 11.0.0-M1, < 11.0.12, >= 10.1.0-M1, < 10.1.47, >= 9.0.0.M1, < 9.0.110, >= 8.5.0, <= 8.5.100 | 11.0.12, 10.1.47, 9.0.110 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat-catalina | >= 11.0.0-M1, < 11.0.12, >= 10.1.0-M1, < 10.1.47, >= 9.0.0.M1, < 9.0.110, >= 8.5.0, <= 8.5.100 | 11.0.12, 10.1.47, 9.0.110 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-61795
- https://github.com/apache/tomcat/commit/1cdf5f730ede75a0759492f179ac21ca4ff68e06
- https://github.com/apache/tomcat/commit/af6e9181620304c0d818121c29c074e1330610d0
- https://github.com/apache/tomcat/commit/afa422bd7ca1eef0f507259c682fd876494d9c3b
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/wm9mx8brmx9g4zpywm06ryrtvd3160pp
- https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.47
- https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.12
- https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.110
- http://www.openwall.com/lists/oss-security/2025/10/27/6
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-404- Platform
- Java / Kotlin (Maven)
- Package
org.apache.tomcat.embed:tomcat-embed-core, org.apache.tomcat:tomcat, org.apache.tomcat:tomcat-catalina- Disclosed
- 27.10.2025
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hgrr-935x-pq79 - CC BY 4.0
Vulnerability history: org.apache.tomcat:tomcat-catalina
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 41
- First → latest
- 05.2019 08.2026
- Without a fix
- 0
- Exploited in attacks
- 3
Severity breakdown
- Critical 9
- High 16
- Medium 11
- Low 5
Disclosures per year
- 2019: 1
- 2020: 1
- 2021: 0
- 2022: 8
- 2023: 6
- 2024: 3
- 2025: 11
- 2026: 11
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Apache Tomcat Vulnerable to Improper Resource Shutdown or Release this entry
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