medium5.3
CVE-2026-59845
A flaw was found in libssh.
Impact
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
| Vendor | Product | Affected versions |
|---|---|---|
| Libssh | Libssh | All versions |
| Redhat | Hardened Images | All versions |
| Redhat | Enterprise Linux | Versions 8.0, 9.0, 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/errata/RHSA-2026:42922
- 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-2026-59845
- https://bugzilla.redhat.com/show_bug.cgi?id=2498178