thoralox

AgentJack

Last verified 2h ago

OpenSSH ssh-agent forwarding PKCS#11 provider load

Exploited in the wild?
YES · Active in KEV
Public exploit?
YES · 3 PoCs
Patch available?
Partial patch
Severity
8.1 HIGH
Check if you're affected Jump to fix commands

Risk signals

Known exploited
CISA KEV2026-10-22
Added Oct 22, 2026
61.1%
EPSS probability
97.4th percentile
PoC repos
3
CVSS
8.1

Summary

Forwarded agent sockets can be coerced into loading attacker-supplied shared libraries.

Fix it

Per-distro commands are being verified
Our team is confirming fixed package versions for OpenSSH. Use your distribution's security tracker in the meantime.

Related incidents

Log4Shell
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CISA KEVPatch available
Apache Traversal
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CVE-2021-41773

Encoded dot segments escape DocumentRoot; with mod_cgi enabled, leads to RCE.

CISA KEVPatch available
CVE-2019-11043
9.8 Critical
CVE-2019-11043

Specific nginx fastcgi_split_path_info configs allow RCE in PHP-FPM.

CISA KEVPatch available