wasm3 uncontrolled memory allocation vulnerability
wasm3 at commit 139076a contains a memory leak in the Read_utf8 function.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pywasm3 | <= 0.5.0 | no fix |
References
- https://gist.github.com/haruki3hhh/ac70bd83b9c0ed1de6289d818488da78
- https://github.com/wasm3/wasm3/issues/462
- https://github.com/advisories/GHSA-fmq6-4w57-2w3v
- https://nvd.nist.gov/vuln/detail/CVE-2024-27529
- https://github.com/wasm3/wasm3/pull/490
- https://github.com/wasm3/wasm3/commit/526c1251b64e6e9fdc0d40c768ae46cd20338594
- https://github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2024-305.yaml
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-125, CWE-400- Platform
- Python (PyPI)
- Package
pywasm3- Disclosed
- 08.11.2024
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2024-305 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-fmq6-4w57-2w3v - CC BY 4.0
Vulnerability history: pywasm3
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
- 11
- First → latest
- 05.2022 06.2025
- Without a fix
- 11
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 7
- Medium 2
- Low 1
Disclosures per year
- 2022: 3
- 2023: 0
- 2024: 7
- 2025: 1
- 2026: 0
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