EIP-2026-103434

PRE-CVE

Chrome V8 JIT - 'AwaitedPromise' Update Bug

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103434. PoCs published by Google Security Research.

AI-analyzed exploit summary This PoC exploits a race condition in V8's AsyncGeneratorReturn by manipulating the AwaitedPromise, leading to a crash (DoS) due to an assertion failure. The exploit leverages JavaScript's async generator and promise handling to trigger the vulnerability.

Description

Chrome V8 JIT - 'AwaitedPromise' Update Bug

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · javascriptdosmultiple
https://www.exploit-db.com/exploits/44540

This PoC exploits a race condition in V8's AsyncGeneratorReturn by manipulating the AwaitedPromise, leading to a crash (DoS) due to an assertion failure. The exploit leverages JavaScript's async generator and promise handling to trigger the vulnerability.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Chromium V8 (specific version not specified)
No auth needed
Prerequisites: V8 engine with vulnerable AsyncGenerator implementation
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026