Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Affects Red HatSource GCVE Database
Not known to be exploited.
Data as of 6 Nov 2026, 01:18 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 12 Aug 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
AI-suggested
Red Hat advises ensuring applications run strictly on 64-bit architectures to prevent the integer overflow. Additionally, configure applications to connect only to trusted and verified SSH servers. A security update is available in Red Hat Hardened Images RPMs including libssh2-1.11.1-10.4.hum1. Red Hat Enterprise Linux 8 and newer do not require action as they are not affected.
Description
A heap buffer overflow vulnerability exists in libssh2 due to an integer overflow triggered by a malicious SSH server sending a manipulated attribute count. This flaw can cause a connecting client to crash or potentially allow unauthorized code execution. Red Hat Hardened Images shipping libssh2 are affected, but Red Hat Enterprise Linux 8 and newer are not impacted as they do not include libssh2. Mitigation includes running applications on 64-bit architectures and connecting only to trusted SSH servers.
References
- access.redhat.com/errata/RHSA-2026:54070 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-58050 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- images.redhat.com (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54070.json (opens in a new tab)