Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Affects Red HatSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 01:32 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Sep 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 29 Oct 2026.
What to do
AI-suggested
Red Hat has released updated OpenSSL packages (version 3.5.8-1.hum1) for Red Hat Hardened Images that fix this vulnerability. Users should apply these updates to mitigate the issue. No additional mitigations are specified or required beyond applying the official update.
Description
A vulnerability in OpenSSL affects multi-threaded TLS clients or servers that verify certificates. Concurrent connections decoding and caching certificate extensions for a shared CA certificate can cause a use-after-free condition, leading to invalid memory reads and application crashes. Exploitation requires precise race timing and results in denial of service without compromising confidentiality or integrity. The issue is limited to multi-threaded environments during initial concurrent TLS handshakes. Red Hat has released an update for Red Hat Hardened Images RPMs including OpenSSL 3.5.8-1.hum1 to address this issue.
References
- access.redhat.com/errata/RHSA-2026:70734 (opens in a new tab)
- images.redhat.com (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-84783 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_70734.json (opens in a new tab)