PT-2026-61859 · Red Hat · Red Hat Enterprise Linux 10+3

CVE-2026-59845 · Published 2026-07-21 · Updated 2026-07-21

Mitre

CVSS v3.1

5.3

Medium

Base vector

AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H

A flaw was found in libssh. When ProxyCommand is used, an unchecked fork() failure can be stored as process ID -1; during cleanup, signals may then be sent across the caller's accessible process tree, leading to local denial of service.

Fix

Related Identifiers

CVE-2026-59845

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Hardened Images

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-59845 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-59845 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2498178 · Note