# CVE-2026-29089: TimescaleDB uses untrusted search path during extension upgrade

> CVE-2026-29089: TimescaleDB uses untrusted search path during extension upgrade. CVSS 8.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-29089
Last updated: 2026-06-17T10:29:34Z

- Published: 2026-03-06 17:06 UTC · Updated: 2026-06-17 10:29 UTC · Assigner: GitHub\_M
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS: 0.14%, 3th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-426

## 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.

## Affected vendors and products

- timescale: timescaledb

## Tracked companies

- [Timescale (Tiger Data)](https://rewindex.com/company/timescale-tiger-data.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-29089)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-29089)
- [https://github.com/timescale/timescaledb/commit/9a8f7f8bdeb99e6abae0786ffe526791a8628ce3](https://github.com/timescale/timescaledb/commit/9a8f7f8bdeb99e6abae0786ffe526791a8628ce3)
- [https://github.com/timescale/timescaledb/pull/9331](https://github.com/timescale/timescaledb/pull/9331)
- [https://github.com/timescale/timescaledb/releases/tag/2.25.2](https://github.com/timescale/timescaledb/releases/tag/2.25.2)
- [https://github.com/timescale/timescaledb/security/advisories/GHSA-vgp2-jj5c-828m](https://github.com/timescale/timescaledb/security/advisories/GHSA-vgp2-jj5c-828m)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-29089 · Markdown: https://rewindex.com/cve/CVE-2026-29089.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-29089 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:09.868Z