CVE-2026-81030 Mage AI through 0.9.79 Arbitrary File Read via Unvalidated Path in browser_items Endpoint

What is CVE-2026-81030?

CVE-2026-81030 is a high-severity path traversal vulnerability in mage-ai, published on 26 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Mage AI does not confine the paths accepted by its browser-items API to the project directory. BrowserItemResource in mage_ai/api/resources/BrowserItemResource.py passes a caller-supplied path to the filesystem read and write helpers without calling the containment helper that the sibling FileContentResource and FileResource classes both use, so the resource contains no such call while those two contain several. A user holding the Viewer role, which grants read access within the project and nothing outside it, can therefore read any file the server process can read by supplying an absolute path. The permission model that would otherwise separate roles is not consulted for this route in the default configuration, because the setting that enables it defaults to false. Callers holding the Editor role additionally write through the same unconfined path, though that role is already able to execute code by design, so the boundary crossed by this flaw is the read available to the Viewer role.

Weakness: CWE-22

Which versions are affected by CVE-2026-81030?

How do I fix CVE-2026-81030?

Apply the vendor's patch.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-81030 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-81030 exists.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7m4p-j4m3-pqmc, MINI-jh7f-vrq3-phfh.