CVE-2026-77371 Redash: DuckDB query runner allows arbitrary file read/write via unrestricted external access
Attackers with query access can read or write arbitrary files via DuckDB, potentially stealing secrets to bypass authentication.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77371?
CVE-2026-77371 is a critical path traversal vulnerability in getredash redash, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Redash is a package for data visualization and sharing. From 26.0.0 until 26.9.0, the DuckDB query runner's _connect() path in redash/query_runner/duckdb.py created connections with enable_external_access left at its default value of true. A user with query access to an administrator-created DuckDB data source could use native file-reading functions to retrieve files readable by the Redash process or use COPY TO to write files with that process's privileges. Reading application secrets such as REDASH_COOKIE_SECRET or REDASH_SECRET_KEY could also enable forged sessions and authentication bypass. This issue is fixed in version 26.9.0.
Weakness: CWE-284
Which versions are affected by CVE-2026-77371?
How do I fix CVE-2026-77371?
No fix has been published for CVE-2026-77371 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-2026-77371 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77371 exists.
Sources
Also known as GHSA-cr68-3xxj-cg9f.