Description
A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.
References
https://github.com/WebAssembly/wabt/issues/2678
https://vuldb.com/?ctiid.339333
https://vuldb.com/?submit.719826
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3 · Medium
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-01T21:15:41.067Z
2 weeks agoLast modified
2026-01-06T15:36:18.837Z
1 week ago