What is CVE-2026-59846?

CVE-2026-59846 is a low-severity vulnerability in Red Hat Enterprise Linux 10. CVSS score: 3.9/10. Published 2026-07-21.

How severe is CVE-2026-59846?

Low severity. CVSS v3 base score is 3.9 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

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 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Hardened Images

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-59846?: CVE-2026-59846 is a low-severity vulnerability in Red Hat Enterprise Linux 10. CVSS score: 3.9/10. Published 2026-07-21.
How severe is CVE-2026-59846?: Low severity. CVSS v3 base score is 3.9 out of 10.