CVE-2026-59845

medium Red Hat
CVSS v3 Base Score
5.3
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Published: July 21, 2026 (47 days ago)
Last Modified: July 21, 2026
Vendor: Red Hat
Source: REDHAT

Description

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.

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9Red Hat Hardened Images

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov