Vulnerability DatabaseCVE-2026-59847
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CVE-2026-59847
Published:July 21, 2026
Updated:August 04, 2026
A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.
Affected Packages
https://gitlab.com/libssh/libssh-mirror.git (SCM_GIT):
Affected version(s) >=libssh-0.9.0 <libssh-0.11.5
Fix Suggestion:
Update to version libssh-0.11.5
Related Resources (3)
https://bugzilla.redhat.com/show_bug.cgi?id=2498180
https://access.redhat.com/errata/RHSA-2026:42922
https://access.redhat.com/security/cve/CVE-2026-59847
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Missing Ability to Patch ROM Code
CWE-1310
EPSS
Base Score:
0.30