SB2026081217 - Anolis OS update for libssh
Published: August 12, 2026
Security Bulletin ID
SB2026081217
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-59850)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 5.3 [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]
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to use-after-free in channel data callbacks when processing data on closed channels. A remote user can send data through a closed channel to cause a denial of service.
The issue affects both server and client components and is exemplified on SFTP channels.
Remediation
Install update from vendor's website.