Use After Free Affecting libssh-config package, versions <0:0.10.4-18.el9


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.23% (13th percentile)

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  • Snyk IDSNYK-ALMALINUX9-LIBSSHCONFIG-16889191
  • published27 May 2026
  • disclosed19 May 2026

Introduced: 19 May 2026

CVE-2025-4878  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 libssh-config to version 0:0.10.4-18.el9 or higher.
This issue was patched in ALSA-2026:18683.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh-config package and not the libssh-config package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption.

CVSS Base Scores

version 3.1