CVE-2026-0967
March 26, 2026
A flaw was found in libssh. A remote attacker, by controlling client configuration files or known_hosts files, could craft specific hostnames that when processed by the "match_pattern()" function can lead to inefficient regular expression backtracking. This can cause timeouts and resource exhaustion, resulting in a Denial of Service (DoS) for the client.
Affected Packages
libssh (CONDA):
Affected version(s) >=0.8.7 <0.12.0Fix Suggestion:
Update to version 0.12.0libssh (CONDA):
Affected version(s) >=0.8.7 <0.12.0Fix Suggestion:
Update to version 0.12.0libssh (CONDA):
Affected version(s) >=0.8.7 <0.12.0Fix Suggestion:
Update to version 0.12.0https://git.libssh.org/projects/libssh.git (SCM_GIT):
Affected version(s) >=libssh-0.5.1 <libssh-0.11.4Fix Suggestion:
Update to version libssh-0.11.4https://git.libssh.org/projects/libssh.git (SCM_GIT):
Affected version(s) >=libssh-0.5.1 <libssh-0.11.4Fix Suggestion:
Update to version libssh-0.11.4https://git.libssh.org/projects/libssh.git (SCM_GIT):
Affected version(s) >=libssh-0.5.1 <libssh-0.11.4Fix Suggestion:
Update to version libssh-0.11.4Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
1
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.2
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Inefficient Regular Expression Complexity
EPSS
Base Score:
0.07
