CVE-2026-29089 affects TimescaleDB versions 2.23.0 through 2.25.1, a PostgreSQL extension for time-series data. The vulnerability allows a low-privileged malicious user to achieve arbitrary code execution during an extension upgrade by creating functions in user-writable schemas that shadow built-in PostgreSQL functions, due to an insecure search_path setting. This high-severity vulnerability (CVSS 8.8) has a local attack vector with low complexity, potentially leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has garnered some community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.23.0, < 2.25.2CPE matchmatch criteria | cpe:2.3:a:timescale:timescaledb:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.