CVE-2026-30225 OliveTin: RestartAction always runs actions as guest

Medium 5.3 Published Updated

Low-privileged users can execute unauthorized shell commands due to authentication context loss in RestartAction, leading to privilege escalation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-30225?

CVE-2026-30225 is a medium-severity vulnerability in OliveTin, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.11.1, an authentication context confusion vulnerability in RestartAction allows a low‑privileged authenticated user to execute actions they are not permitted to run. RestartAction constructs a new internal connect.Request without preserving the original caller’s authentication headers or cookies. When this synthetic request is passed to StartAction, the authentication resolver falls back to the guest user. If the guest account has broader permissions than the authenticated caller, this results in privilege escalation and unauthorized command execution. This vulnerability allows a low‑privileged authenticated user to bypass ACL restrictions and execute arbitrary configured shell actions. This issue has been patched in version 3000.11.1.

Weakness: CWE-441, CWE-250

Which versions are affected by CVE-2026-30225?

3 open source packages ship an affected version, including github.com/OliveTin/OliveTin. It affects 1 product.

PackageAffectedFixed in
github.com/OliveTin/OliveTin GoAll versions0.0.0-20260305000458-cb46a597b246
github.com/OliveTin/OliveTin GoAll versions0.0.0-20260305000458-cb46a597b246
github.com/OliveTin/OliveTin GoAll versions0.0.0-20260305000458-cb46a597b246

Products include Olivetin Olivetin.

How do I fix CVE-2026-30225?

Upgrade github.com/OliveTin/OliveTin to 0.0.0-20260305000458-cb46a597b246 or later.

Is CVE-2026-30225 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30225 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-p443-p7w5-2f7f, GO-2026-4625.

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