Buffer overflow in wasm3

HIGH 7.8CVE-2022-28990 · GHSA-77fq-4xf5-hph4 · PYSEC-2022-43154 · Published 20/05/2022 · updated 17/06/2026

In short

CVE-2022-28990 is a HIGH (CVSS 7.8) vulnerability affecting pywasm3, wasm3 (wasm3 project).
Chance of exploitation in the next 30 days (EPSS): 0.40%, higher than 33.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
pywasm3 PyPI	`≤ 0.5.0`	No fix yet
wasm3 wasm3_project	`= 0.5.0`	No fix yet

WASM3 v0.5.0 was discovered to contain a heap overflow via the component /wabt/bin/poc.wasm.

NVD description

WASM3 v0.5.0 was discovered to contain a heap overflow via the component /wabt/bin/poc.wasm.

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Package

Affected versions

Patched versions

PyPI

≤ 0.5.0

No fix yet

= 0.5.0

No fix yet

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