Advisoriesby IbisRed HatCVE-2026-59846
Red Hat libssh: command injection
No fix yet
A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior.
Affected versions
The source does not list versions here. See the source advisory for affected products and fixes.
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-78, CWE-77
- www.cve.org/CVERecord?id=CVE-2026-59846
- nvd.nist.gov/vuln/detail/CVE-2026-59846
- access.redhat.com/errata/RHSA-2026:42922
- access.redhat.com/errata/RHSA-2026:55855
- access.redhat.com/errata/RHSA-2026:62217
- access.redhat.com/errata/RHSA-2026:62218
- access.redhat.com/security/cve/CVE-2026-59846
- bugzilla.redhat.com/show_bug.cgi?id=2498179