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.
Low CVSS 3.9
Summary
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.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://access.redhat.com/errata/RHSA-2026:42922 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-59846 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2498179 Issue Tracking
Timeline
- nvd_ingest NVD