CVE-2026-121417

Description

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.

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