CVE-2026-103928 Metabase: Arbitrary File Read/Write via Unsafe H2 Built-in Functions
Authorized users can read or write arbitrary files on the Metabase server via unsafe H2 built-in functions in native queries.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103928?
CVE-2026-103928 is a critical path traversal vulnerability in metabase, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Metabase is an open source business intelligence and analytics platform. From 1.55.0 until 1.58.16, 1.59.13, 1.60.9, and 1.61.4, native queries and actions against an H2 data source are passed through without restricting host-facing built-in functions. A user authorized to run native queries or actions can invoke FILE_READ, FILE_WRITE, CSVREAD, CSVWRITE, or LINK_SCHEMA to read or write arbitrary files on the Metabase server or link other databases. The default sample database uses H2, so the vulnerable surface is exposed by default. This issue is fixed in versions 1.58.16, 1.59.13, 1.60.9, and 1.61.4.
Weakness: CWE-73
Which versions are affected by CVE-2026-103928?
How do I fix CVE-2026-103928?
No fix has been published for CVE-2026-103928 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-103928 being exploited?
There is no known exploitation of CVE-2026-103928 in the wild and no public exploit code.
Sources
Also known as GHSA-cwxq-fmxq-jv8h.