Access of Resource Using Incompatible Type in Hermes
By passing invalid javascript code where await and yield were called upon non-async and non-generator getter/setter functions, Hermes would invoke generator functions and error out on invalid await/yield positions. This could result in segmentation fault as a consequence of type confusion error, with a low chance of RCE. This issue affects Hermes versions prior to v0.10.0.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | hermes-engine | < 0.10.0 | 0.10.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-843- Platform
- npm
- Package
hermes-engine- Disclosed
- 16.01.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-7mhc-prgv-r3q4 - CC BY 4.0
Vulnerability history: hermes-engine
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 7
- First → latest
- 01.2022 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 4
- High 3
Disclosures per year
- 2022: 7
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
-
Access of Resource Using Incompatible Type in Hermes this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.