Red Hat Security Advisory: Red Hat Certificate System 10.4.4 security and bug fix update for RHEL 8
Affects Red HatSource GCVE Database
Not known to be exploited · CVSS 5.8 Medium.
Data as of 5 Nov 2026, 22:49 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Certificate System 10.4 EUS for RHEL-8redhat-pki:10 | Affected– | Fixed in– |
| Red Hat Certificate System 10redhat-pki:10/redhat-pki | Affected– | Fixed in– |
| Red Hat Certificate System 11redhat-pki | Affected– | Fixed in– |
| Red Hat Certificate System 9pki-core | Affected– | Fixed in– |
| Red Hat Certificate System 9redhat-pki | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10dogtag-pki | Affected– | Fixed in– |
Description
Red Hat Certificate System (RHCS) is a complete implementation of an enterprise software system designed to manage enterprise Public Key Infrastructure (PKI) deployments. Security fixes: - CVE-2026-18369 - ACME HTTP-01 validation SSRF via IP literal identifiers and unvalidated redirects Users of RHCS are advised to upgrade to these updated packages.