Unrated severityOSV Advisory· Published Dec 30, 2025· Updated Jan 2, 2026
WasmEdge integer wrap in MemoryInstance::getSpan()'s memory size check
CVE-2025-69261
Description
WasmEdge is a WebAssembly runtime. Prior to version 0.16.0-alpha.3, a multiplication in WasmEdge/include/runtime/instance/memory.h can wrap, causing checkAccessBound() to incorrectly allow the access. This leads to a segmentation fault. Version 0.16.0-alpha.3 contains a patch for the issue.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/WasmEdge/WasmEdge/commit/37cc9fa19bd23edbbdaa9252059b17f191fa4d17mitrex_refsource_MISC
- github.com/WasmEdge/WasmEdge/security/advisories/GHSA-89fm-8mr7-gg4mmitrex_refsource_CONFIRM
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