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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 Patch
- https://github.com/timescale/timescaledb/pull/10360 Issue Tracking, Patch
- https://www.vulncheck.com/advisories/timescaledb-out-of-bounds-read-dos-via-gorilla-compression-reverse-iterator Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · timescaleNVD modified 2026-10-23 21:10
Affected (CPE criteria) 1
cpe:2.3:a:timescale:timescaledb:*:*:*:*:*:*:*:*
References 3
- https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 Patch
- https://github.com/timescale/timescaledb/pull/10360 Issue Tracking, Patch
- https://www.vulncheck.com/advisories/timescaledb-out-of-bounds-read-dos-via-gorilla-compression-reverse-iterator Patch, Third Party Advisory