CVE-2026-70633: high-severity vulnerability in timescaledb
TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Gorilla Compression Reverse Iterator
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.5%
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
timescale · timescaledbRelated CVEs — timescaledb
In the same product, most dangerous first.
CVE-2023-25149HIGHTimescaleDB has incorrect access controlEPSS 0.8%CVE-2026-70634HIGHTimescaleDB 2.29.1 Out-of-Bounds Read Information Disclosure via Dictionary Compression Reverse IteratorEPSS 0.5%CVE-2026-70635HIGHTimescaleDB 2.29.1 Out-of-Bounds Read DoS via Bulk Dictionary Decompression Negative IndexEPSS 0.4%CVE-2026-29089HIGHTimescaleDB uses untrusted search path during extension upgradeEPSS 0.2%