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CVE-2026-58051VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red HatSource GCVE Database

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Not known to be exploited.

Data as of 6 Nov 2026, 01:21 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

A security update is available for Red Hat Hardened Images RPMs including libssh2 version 1.11.1-10.1.hum1. Users should apply this update to remediate the vulnerability. Additionally, applications should connect only to trusted and verified SSH servers to reduce exposure. Standard system memory defenses may help mitigate crashes caused by malformed server responses. Red Hat Enterprise Linux 8 and newer are not affected and require no action.

Description

A vulnerability in libssh2 allows a malicious SSH server to send a malformed public key response, causing improper memory cleanup. This can lead to client application crashes or information leakage. The flaw affects Red Hat Hardened Images RPMs containing libssh2. Red Hat Enterprise Linux 8 and newer are not affected as they do not ship libssh2. The vulnerability requires interaction with a malicious or compromised SSH server, limiting exposure to untrusted connections.

References

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