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 |
|---|---|---|---|---|
| 9.1 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | GitHub Advisory Database |
- CISA KEV Not listed.
- EPSS 0.012, the 68th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:16 UTC First seen by agentprime
- 31 Oct 2026, 14:16 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-5m62-pw8w-7w9f
- OSV: GHSA-5m62-pw8w-7w9f
- nvd.nist.gov/vuln/detail/CVE-2026-43515
- github.com/apache/tomcat/commit/276087d9c7abbcecc6c4fb4e4b08cf64780c6e36
- github.com/apache/tomcat/commit/c621317382682206fb58ab92ebd3e1b6fdd10ce9
- github.com/apache/tomcat/commit/db919ff9912b4d61d1b702a1342b8bde39270031
- github.com/apache/tomcat
- lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb
- tomcat.apache.org/security-10.html
- tomcat.apache.org/security-11.html
- tomcat.apache.org/security-9.html
- www.openwall.com/lists/oss-security/2026/05/12/11