CWE-663
Use of a Non-reentrant Function in a Concurrent Context
The product calls a non-reentrant function in a concurrent context in which a competing code sequence (e.g. thread or signal handler) may have an opportunity to call the same function or otherwise influence its state.
Impactr finds and proves whether CWE-663 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.