Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a290
- https://github.com/timescale/timescaledb/pull/10360
- https://www.vulncheck.com/advisories/timescaledb-out-of-bounds-read-dos-via-gori
FAQ
What is CVE-2026-70633?
CVE-2026-70633 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...
How severe is CVE-2026-70633?
CVE-2026-70633 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-70633?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.