PT-2026-61939 · Libssh+3 · Libssh+3

CVE-2026-59847

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Published

2026-07-21

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Updated

2026-09-01

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Name of the Vulnerable Software and Affected Versions libssh (affected versions not specified)
Description Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can remove integrity protection. This allows an in-path attacker to modify plaintext during transmission without detection. AES-GCM is an authenticated encryption mode that provides both confidentiality and data integrity.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

ALSA-2026:55855
ALSA-2026:62217
ALSA-2026:62218
AZL-93246
CVE-2026-59847
ECHO-C402-A16C-CFD9
OESA-2026-3321
OESA-2026-3322
OESA-2026-3323
OESA-2026-3324
OESA-2026-3476
OPENSUSE-SU-2026:11377-1
OPENSUSE-SU-2026:21444-1
RHSA-2026:42922
SUSE-SU-2026:22940-1
SUSE-SU-2026:22948-1
SUSE-SU-2026:22956-1
SUSE-SU-2026:23056-1
SUSE-SU-2026:23168-1
SUSE-SU-2026:3302-1
SUSE-SU-2026:3330-1
SUSE-SU-2026:3463-1
USN-8699-1

Affected Products

Linuxmint
Rocky Linux
Ubuntu
Libssh