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 |
|---|---|---|---|---|
| 7.4 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CNA (redhat) |
- CISA KEV Not listed.
- EPSS 0.011, the 65th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:11 UTC First seen by agentprime
- 31 Oct 2026, 15:11 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-3jrv-jgp8-45v3
- OSV: GHSA-3jrv-jgp8-45v3
- nvd.nist.gov/vuln/detail/CVE-2023-4639
- github.com/undertow-io/undertow/commit/1f93a979d2ac264798e5779b5b7172dfafe0066f
- access.redhat.com/errata/RHSA-2024:1674
- access.redhat.com/errata/RHSA-2024:1675
- access.redhat.com/errata/RHSA-2024:1676
- access.redhat.com/errata/RHSA-2024:1677
- access.redhat.com/errata/RHSA-2024:2763
- access.redhat.com/errata/RHSA-2024:2764
- access.redhat.com/errata/RHSA-2024:3919
- access.redhat.com/security/cve/CVE-2023-4639
- bugzilla.redhat.com/show_bug.cgi?id=2166022
- github.com/undertow-io/undertow