Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-77371Redash: DuckDB query runner allows arbitrary file read/write via unrestricted external access

Critical 9.3

In plain English

A critical-severity improper access control in redash from getredash. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.5%top 55.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
getredash	redash	>= 26.0.0, < 26.9.0

Weakness: CWE-284 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N

References

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