{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"timescale/timescaledb","product":"timescaledb","source":"CNA: VulnCheck","vendor":"timescale","versions":[{"lessThanOrEqual":"2.29.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3","versionType":"git"}]}],"cveId":"CVE-2026-70633","cwes":["CWE-191","CWE-125"],"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.","epss":{"date":"2026-11-08","percentile":0.44029,"score":0.00513},"exploits":[],"kev":null,"metrics":[{"score":7.1,"severity":"high","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":6.5,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794146909276,"publishedAt":1786035086219,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/timescale/timescaledb/pull/10360"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/timescaledb-out-of-bounds-read-dos-via-gorilla-compression-reverse-iterator"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/timescale/timescaledb/pull/10360"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3"}],"revision":"e2d2c6e55b77ec7b6ee3500ef32a14e62281b003626260e8d688921b654adda0","sources":[{"modifiedAt":1794146909276,"name":"CNA: VulnCheck","retrievedAt":1794151317476,"url":"https://www.cve.org/CVERecord?id=CVE-2026-70633"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794151338682,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-70633"}],"ssvc":{"assessedAt":1786116760945,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Gorilla Compression Reverse Iterator","updatedAt":1794151338682}