SB2026071798 - Fedora 44 update for openssh



SB2026071798 - Fedora 44 update for openssh

Published: July 17, 2026

Security Bulletin ID SB2026071798
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Path traversal (CVE-ID: CVE-2026-59996)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to write files outside the intended target directory.

The vulnerability exists due to improper path restriction in scp(1) when copying files between two remote destinations. A remote attacker can operate a malicious server to write files outside the intended target directory.


2) Use-after-free (CVE-ID: CVE-2026-60002)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to cause a client-side denial of service.

The vulnerability exists due to use-after-free in ssh(1) when processing a host key change during key reexchange. A remote attacker can change its host key during key reexchange to cause a client-side denial of service.


Remediation

Install update from vendor's website.