CVE-2026-121417

EUVD-2026-115949
SurrealDB before 3.3.0 contains a use-after-free vulnerability in surrealdb-core KV backends that pass borrowed transaction state into affinitypool::spawn_local closures relying on future Drop for safety. Rust embedders that leak a dispatched future (e.g. via mem::forget) and drop the transaction cause pool workers to read and write freed memory, risking crashes or memory corruption.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.8 HIGH
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
surrealdbsurrealdb
𝑥
< 3.3.0
CNA
Common Weakness Enumeration
References
https://github.com/surrealdb/surrealdb/commit/17584a181979f04f2aaad867332c22db1caa511a
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pm86-cc75-q463
https://www.vulncheck.com/advisories/surrealdb-before-3.3.0-use-after-free-via-affinitypool-spawn-local-in-kv-backends
https://github.com/surrealdb/surrealdb/security/advisories/GHSA-pm86-cc75-q463