CVE-2026-29089
If the search_path includes user-writable schemas a malicious user can create functions in that schema that shadow builtin postgres functions and will be called instead of the postgres functions leading to arbitrary code execution during extension…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
TimescaleDB is a time-series database for high-performance real-time analytics packaged as a Postgres extension. From version 2.23.0 to 2.25.1, PostgreSQL uses the search_path setting to locate unqualified database objects (tables, functions, operators). If the search_path includes user-writable schemas a malicious user can create functions in that schema that shadow builtin postgres functions and will be called instead of the postgres functions leading to arbitrary code execution during extension upgrade. This issue has been patched in version 2.25.2.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.14% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-426
- Affected
- timescale/timescaledb
- Source
- security-advisories@github.com
References
- https://github.com/timescale/timescaledb/commit/9a8f7f8bdeb99e6abae0786ffe526791a8628ce3Patch
- https://github.com/timescale/timescaledb/pull/9331Issue Tracking, Patch
- https://github.com/timescale/timescaledb/releases/tag/2.25.2Product, Release Notes
- https://github.com/timescale/timescaledb/security/advisories/GHSA-vgp2-jj5c-828mMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.