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TimescaledbApplication · Timescale

CVE-2026-29089

HIGH · 8.8 CVSS v3.1 Published 2026-03-06
Fix available
A fix is available. Upgrade to 2.25.2 or later.
See remediation →
90/100
Remediation priority · Urgent
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
TimescaledbApplication
Affected:>= 2.23.0, < 2.25.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2.25.2 or later
Fixed in 2.25.2
Vendor patch github.com →
Recommended fix High confidence

TimescaleDB 2.25.2

  1. 1. Back up your PostgreSQL database before upgrading
  2. 2. Stop any services or applications connecting to the PostgreSQL database
  3. 3. Upgrade TimescaleDB to version 2.25.2 or later using your package manager or compilation process
  4. 4. After upgrading, restart the PostgreSQL service
  5. 5. Verify the TimescaleDB version is 2.25.2 or later using: SELECT extversion FROM pg_extension WHERE extname = 'timescaledb';
  6. 6. Test that database operations and TimescaleDB functionality work correctly after the upgrade
Caveat Review TimescaleDB release notes for any migration requirements or breaking changes between your current version and 2.25.2

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,950. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-29089 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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