CVE-2026-120440

QuickJS-NG versions prior to 0.16.0 are vulnerable to a memory leak in the js_atomics_store() function within quickjs.c. The vulnerability occurs because the engine fails to free a converted value when returning a RangeError . An attacker executing JavaScript can trigger this leak by repeatedly c...

CVE-2026-120440 QuickJS-NG before 0.16.0 Memory Leak via Atomics.store

QuickJS-NG before 0.16.0 contains a memory leak vulnerability in jsatomicsstore in quickjs.c that fails to free the converted value when returning a RangeError. Attackers running JavaScript can repeatedly call Atomics.store with a valueOf that detaches or shrinks the buffer to exhaust heap memory...

CVE-2026-120440 QuickJS-NG before 0.16.0 Memory Leak via Atomics.store

QuickJS-NG before 0.16.0 contains a memory leak vulnerability in jsatomicsstore in quickjs.c that fails to free the converted value when returning a RangeError. Attackers running JavaScript can repeatedly call Atomics.store with a valueOf that detaches or shrinks the buffer to exhaust heap memory...