Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Apache Tomcat's CGI servlet is affected by a case sensitivity handling flaw in versions 8.5.0 through 8.5.100, 9.0.0.M1 through 9.0.104, 10.1.0-M1 through 10.1.40, and 11.0.0-M1 through 11.0.6. An attacker may be able to bypass security constraints applied to the pathInfo of URIs mapped to the CGI servlet. Upgrade to Tomcat 11.0.7, 10.1.41, or 9.0.105, which fix the issue.
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 |
|---|---|---|---|---|
| 7.3 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L | ADP (CISA-ADP) |
- CISA KEV Not listed.
- EPSS 0.031, the 87th percentile, on 5 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-h2fw-rfh5-95r3
- OSV: GHSA-h2fw-rfh5-95r3
- nvd.nist.gov/vuln/detail/CVE-2025-46701
- github.com/apache/tomcat/commit/0f01966eb60015d975525019e12a087f05ebf01a
- github.com/apache/tomcat/commit/238d2aa54b99f91d1111467e2237d2244c64e558
- github.com/apache/tomcat/commit/2c6800111e7d8d8d5403c07978ea9bff3db5a5a5
- github.com/apache/tomcat/commit/8cb95ff03221067c511b3fa66d4f745bc4b0a605
- github.com/apache/tomcat/commit/8df00018a252baa9497615d6420fb6c10466fa74
- github.com/apache/tomcat/commit/fab7247d2f0e3a29d5daef565f829f383e10e5e2
- github.com/apache/tomcat
- lists.apache.org/thread/xhqqk9w5q45srcdqhogdk04lhdscv30j
- lists.debian.org/debian-lts-announce/2025/07/msg00009.html
- tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.41
- tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.7