GHSA-f5x2-xv93-4p23
Access of Resource Using Incompatible Type in Facebook Hermes
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | hermes-engine | < 0.5.2 | 0.5.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
A type confusion vulnerability when resolving properties of JavaScript objects with specially-crafted prototype chains in Facebook Hermes prior to commit fe52854cdf6725c2eaa9e125995da76e6ceb27da allows attackers to potentially execute arbitrary code via crafted JavaScript. Note that this is only exploitable if the application using Hermes permits evaluation of untrusted JavaScript. Hence, most React Native applications are not affected.
References
External links from the advisory. They lead to third-party sites.