wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host r
wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host runtime. A valid WebAssembly module, when executed at runtime, may cause this panic. This vulnerability has been patched in version 19.0.1.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | wasmtime | <= 19.0.0 | no fix |
References
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-75hq-h6g9-h4q5
- https://github.com/bytecodealliance/wasmtime/issues/8281
- https://github.com/bytecodealliance/wasmtime/commit/7f57d0bb0948fa56cc950278d0db230ed10e8664
- https://github.com/bytecodealliance/wasmtime/pull/8018
- https://github.com/bytecodealliance/wasmtime/pull/8283
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
-- Platform
- Python (PyPI)
- Package
wasmtime- Disclosed
- 04.04.2024
- Updated
- 11.10.2026 14:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2024-327 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: wasmtime
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 05.2021 04.2026
- Without a fix
- 3
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 3
- Low 1
Disclosures per year
- 2021: 2
- 2022: 0
- 2023: 0
- 2024: 2
- 2025: 0
- 2026: 1
-
wasmtime is a runtime for WebAssembly. The 19.0.0 release of Wasmtime contains a regression introduced during its development which can lead to a guest WebAssembly module causing a panic in the host r 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.