Description

TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability that allows authenticated attackers to cause query-result integrity failures or backend crashes by supplying a crafted Simple8b selector-11 value, which is stored in the signed int16 Arrow dictionary-index type and bypasses index validation checks in bulk text dictionary decompression. Attackers with direct DML access to a non-frozen physical compressed hypertable relation can trigger an out-of-bounds read before the base of the live offsets array through the VectorAgg single-text hashing strategy, resulting in incorrect aggregation output, backend SIGSEGV, or PostgreSQL crash recovery depending on build configuration.

Severity (CVSS)

Base score7.1
SeverityHigh
VersionCVSS 4.0
VectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Provided byCNA

Weaknesses

  • CWE-129 — CWE-129 Improper Validation of Array Index
  • CWE-125 — CWE-125 Out-of-bounds read

Affected products

VendorProductVersions
timescaletimescaledb0 to <=2.29.1; 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 07 Aug 2026 07:02 UTC.