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CVE-2026-59846

Libssh: libssh: information disclosure via proxycommand %r username expansion PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Red Hat / Red Hat Enterprise Linux 10unaffected 0:0.12.0-3.el10_2 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:0.9.6-17.el8_10 before *
Red Hat / Red Hat Enterprise Linux 8unaffected 0:0.9.6-17.el8_10 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:0.10.4-19.el9_8 before *
Red Hat / Red Hat Enterprise Linux 9unaffected 0:0.10.4-19.el9_8 before *
Red Hat / Red Hat Hardened Imagesunaffected 0.12.1-4.hum1 before *

CWE

CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.