CVE-2026-29089

TimescaleDB uses untrusted search path during extension upgrade

HIGH
8.8
CVSS Score
Published: March 6, 2026 at 05:06 PM UTC
Updated: June 17, 2026 at 10:29 AM UTC
1 product affected across 1 vendorTimescaledb

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known 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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.25.22.23.0 ≤ v < 2.25.2
Affected range stops below 2.25.2, so it looks safe — our inference, not a vendor statement

References (4)

x_refsource_CONFIRMMitigationVendor Advisory
Source: cverecord
https://github.com/timescale/timescaledb/security/advisories/GHSA-vgp2-jj5c-828m
x_refsource_MISCIssue TrackingPatch
Source: cverecord
https://github.com/timescale/timescaledb/pull/9331
x_refsource_MISCProductRelease Notes
Source: cverecord
https://github.com/timescale/timescaledb/releases/tag/2.25.2

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHGitHub_M
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-426

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