CVE-2026-70635
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Summary
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability that allows authenticated attackers to cause query-result integrity failures or backend crashes by supplying a crafted Simple8b selector-11 value, which is stored in the signed int16 Arrow dictionary-index type and bypasses index validation checks in bulk text dictionary decompression. Attackers with direct DML access to a non-frozen physical compressed hypertable relation can trigger an out-of-bounds read before the base of the live offsets array through the VectorAgg single-text hashing strategy, resulting in incorrect aggregation output, backend SIGSEGV, or PostgreSQL crash recovery depending on build configuration.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| timescale | timescaledb | 0 <= 2.29.1 | affected |
| timescale | timescaledb | 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 | unaffected |
Weaknesses
- CWE-129: CWE-129 Improper Validation of Array Index
- CWE-125: CWE-125 Out-of-bounds read
References
- https://github.com/timescale/timescaledb/pull/10360
- https://github.com/timescale/timescaledb/commit/517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3
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