CVE-2026-77371: Access Control Flaw

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.

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Weakness Type (CWE)

CWE-284 CWE-284

References

Other References

https://github.com/getredash/redash/commit/7387072af40913a64e7b3be470491792f2d5551c https://github.com/getredash/redash/releases/tag/v26.9.0 https://github.com/getredash/redash/security/advisories/GHSA-cr68-3xxj-cg9f https://github.com/getredash/redash/security/advisories/GHSA-cr68-3xxj-cg9f

Frequently Asked Questions

What is CVE-2026-77371? +

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.

How do I check if I'm vulnerable to CVE-2026-77371? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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