CVE-2025-69261

WasmEdge integer wrap in MemoryInstance::getSpan()'s memory size check

State: Published
Severity: 5.5 Medium
Published: Dec 30, 2025
Updated: Jan 2, 2026
Reserved: Dec 30, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	5.5 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	GitHub_M

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
WasmEdgeWasmEdge	< 0.16.0-alpha.3Affected

References

https://github.com/WasmEdge/WasmEdge/security/advisories/GHSA-89fm-8mr7-gg4m
https://github.com/WasmEdge/WasmEdge/commit/37cc9fa19bd23edbbdaa9252059b17f191fa4d17

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