Type Confusion in Async Generators in Javascript Engine
At a glance
Severity
HIGH 7.5
EPSS
EPSS 0.66 % · percentile 51 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
mozilla
NVD status
Analyzed
Description
An error in the ECMA-262 specification relating to Async Generators could have resulted in a type confusion, potentially leading to memory corruption and an exploitable crash. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.