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 |
|---|---|---|---|---|
| 5.9 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.012, the 68th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:16 UTC First seen by agentprime
- 31 Oct 2026, 15:16 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-vmwr-mc7x-5vc3
- OSV: GHSA-vmwr-mc7x-5vc3
- github.com/ruby/rexml/security/advisories/GHSA-vmwr-mc7x-5vc3
- nvd.nist.gov/vuln/detail/CVE-2024-43398
- github.com/ruby/rexml/commit/7cb5eaeb221c322b9912f724183294d8ce96bae3
- github.com/ruby/rexml
- github.com/ruby/rexml/releases/tag/v3.3.6
- github.com/rubysec/ruby-advisory-db/blob/master/gems/rexml/CVE-2024-43398.yml
- lists.debian.org/debian-lts-announce/2025/01/msg00011.html
- security.netapp.com/advisory/ntap-20250103-0006
- www.ruby-lang.org/en/news/2024/08/22/dos-rexml-cve-2024-43398