CVEvulnerability
CVE-2026-59845
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-07-21
- Last modified
- 2026-09-01
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-390
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 configurations
• libssh libssh
• redhat hardened images
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-390 Detection of Error Condition Without Action weakness
References
- https://access.redhat.com/errata/RHSA-2026:42922 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:55855 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:62217 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:62218 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-59845 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2498178 Issue Tracking, Vendor Advisory