Stack-based Buffer Overflow Affecting libssh-devel package, versions <0:0.12.0-3.el10_2


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.17% (6th percentile)

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  • Snyk IDSNYK-ALMALINUX10-LIBSSHDEVEL-18959220
  • published19 Aug 2026
  • disclosed17 Aug 2026

Introduced: 17 Aug 2026

CVE-2026-15370  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 libssh-devel to version 0:0.12.0-3.el10_2 or higher.
This issue was patched in ALSA-2026:55855.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libssh-devel package and not the libssh-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead to crashes or possible code execution on the server.

CVSS Base Scores

version 3.1