Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache Tomcat (org.apache.tomcat:tomcat, tomcat-catalina, and tomcat-embed-core) is affected in versions 11.0.0-M1 through 11.0.11, 10.1.0-M1 through 10.1.46, 9.0.0.M1 through 9.0.109, and 8.5.0 through 8.5.100 (EOL). When an error or limit is exceeded during multipart upload processing, temporary files are not deleted immediately and wait for garbage collection, so disk space can fill faster than it is freed, causing a denial of service. Upgrade to 11.0.12, 10.1.47, or 9.0.110 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.012, the 69th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:17 UTC First seen by agentprime
- 31 Oct 2026, 14:17 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-hgrr-935x-pq79
- OSV: GHSA-hgrr-935x-pq79
- nvd.nist.gov/vuln/detail/CVE-2025-61795
- github.com/apache/tomcat/commit/1cdf5f730ede75a0759492f179ac21ca4ff68e06
- github.com/apache/tomcat/commit/af6e9181620304c0d818121c29c074e1330610d0
- github.com/apache/tomcat/commit/afa422bd7ca1eef0f507259c682fd876494d9c3b
- cert-portal.siemens.com/productcert/html/ssa-032379.html
- github.com/apache/tomcat
- lists.apache.org/thread/wm9mx8brmx9g4zpywm06ryrtvd3160pp
- tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.47
- tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.12
- tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.110
- www.openwall.com/lists/oss-security/2025/10/27/6