CVE-2026-59846

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.

CVSS v3 3.9 LOW

3.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.3 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:42922
https://access.redhat.com/security/cve/CVE-2026-59846
https://bugzilla.redhat.com/show_bug.cgi?id=2498179

Configurations

No configuration.

History

23 Jul 2026, 14:17

Type	Values Removed	Values Added
CWE		CWE-77

22 Jul 2026, 20:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:42922 -

21 Jul 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-21 13:17

Updated : 2026-07-23 14:17

NVD link : CVE-2026-59846

Mitre link : CVE-2026-59846

CVE.ORG link : CVE-2026-59846

JSON object : View

Products Affected

No product.

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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