CVE-2026-59848

5.3 Moyenne

Publiée le 21/07/2026 à 16:16 · Modifiée le 01/09/2026 à 23:18 · Modifiée · Source : secalert@redhat.com

Description

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service.

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Produits concernés

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Hardened Images
Libssh libssh
Redhat hardened images
Redhat enterprise linux

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.3 Moyenne	secalert@redhat.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`

Faiblesses (CWE)

CWE-770

Références

https://access.redhat.com/errata/RHSA-2026:42922 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:55855
https://access.redhat.com/errata/RHSA-2026:62217
https://access.redhat.com/errata/RHSA-2026:62218
https://access.redhat.com/security/cve/CVE-2026-59848 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2498181 Issue TrackingVendor Advisory

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories