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.

Related CPE's


References


https://github.com/WebAssembly/wabt/issues/2678

ExploitIssue TrackingVendor Advisory


https://vuldb.com/?ctiid.339333

Permissions RequiredVDB Entry

https://vuldb.com/?id.339333

Third Party AdvisoryVDB Entry

https://vuldb.com/?submit.719826

Third Party AdvisoryVDB Entry

Weaknesses



CWE-119CWE-125

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

[email protected]

Vulnerability status

Analyzed

Published

2026-01-01T21:15:41.067Z

2 weeks ago

Last modified

2026-01-06T15:36:18.837Z

1 week ago