CVE-2026-59847

HIGH CVSS 3.1: 7.5 EPSS 0.30%
Updated Jul 30, 2026
Libssh
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-1310
Vendor Libssh
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 5

Configuration From (including) Up to (excluding)
Libssh Libssh
cpe:2.3:a:libssh:libssh:-:*:*:*:*:*:*:*
Redhat Hardened_Images
cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Redhat Enterprise_Linux
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*