CVE-2026-70633: TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla…
CVE-2026-70633 · Severity: medium · CVSS 6.5 · Published 2026-08-06
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla compression reverse row iterator that allows authenticated attackers to cause a denial of service by storing a crafted compressed datum with an internally inconsistent BitArray. Attackers with DML access to a compressed hypertable can trigger an unsigned integer wraparound in the reverse iterator bucket index computation, causing a read beyond the end of the bucket array, resulting in a SIGSEGV crash that can be repeatedly triggered on each subsequent reverse-order scan.
No. Junglewise Threat Intelligence has no report of CVE-2026-70633 being exploited in the wild.
How severe is CVE-2026-70633?
Medium severity, with a CVSS score of 6.5, published 6 August 2026.
Which products and versions are affected?
Timescaledb. The advisory does not name versions.
Is there a fix for CVE-2026-70633?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-70633?
Check whether you run Timescaledb. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.