CVE-2026-85623 goose 1.37.0 Arbitrary Command Execution via Recipe Extensions

High 8.7 Published Updated

Attackers can execute arbitrary shell commands by distributing malicious recipes that bypass security scans in the Goose developer tool.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-85623?

CVE-2026-85623 is a high-severity command injection vulnerability in aaif-goose goose, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

goose 1.37.0 executes arbitrary commands from recipe stdio extensions and retry.checks without security inspection. Attackers can distribute malicious recipes that execute shell commands as the user running goose, bypassing the recipe security scan which does not inspect extensions or retry configurations.

Weakness: CWE-94

Which versions are affected by CVE-2026-85623?

Linux distribution packages (1)
goose openSUSE:TumbleweedAll versions1.51.0-1.1

How do I fix CVE-2026-85623?

Apply the vendor's patch.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-85623 being exploited?

There is no known exploitation of CVE-2026-85623 in the wild and no public exploit code.

Sources

Also known as GHSA-rh2p-fw5h-rc3m, openSUSE-SU-2026:11874-1.

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