Disclosure summary
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.
Source-reported weakness categories
CWE-119, CWE-125
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-15412
Open original source · Updated Oct 07, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| webassembly | wabt | * {"versionEndIncluding":"1.0.39"} |
Original records & references
- NIST NVD record
- CVE Program record
- github.com
- github.com — Exploit, Issue Tracking, Vendor Advisory
- github.com — Exploit
- vuldb.com — Permissions Required, VDB Entry
- vuldb.com — Third Party Advisory, VDB Entry
- vuldb.com — Third Party Advisory, VDB Entry
PUBLISHED 2026-01-01T16:15:41-05:00
MODIFIED 2026-10-07T07:10:00-04:00
INGESTED 2026-10-08T12:40:11-04:00