CVEvulnerability

CVE-2026-115393

1.0 LOW Published 2026-10-22 Modified 2026-10-29 Official page ↗
Status
Deferred
Published
2026-10-22
Last modified
2026-10-29
Assigner
[email protected]
CVSS 4.0 ([email protected])
1.0 LOW — CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 ([email protected])
3.8 LOW — CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L
Weaknesses
CWE-787

Description

Wasmtime before 24.0.12, 25.0.0 before 36.0.13, 37.0.0 before 46.0.2, and 47.0.0 before 47.0.3 contains a type confusion vulnerability because several Store APIs fail to validate that objects belong to the Store's Engine. Embedders mixing objects between Engines via Instance::new, StructRefPre::new, or Tag::new can trigger trampoline signature mismatches causing out-of-bounds stack writes, GC heap corruption, or panics.

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References