CVE-2026-115393

Published: Ott 22, 2026 Last Modified: Ott 22, 2026
ExploitDB:
Other exploit source:
Google Dorks:
LOW 1,0
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: high
User Interaction: passive
Confidentiality: N/A
Integrity: N/A
Availability: N/A
LOW 3,8
Source: [email protected]
Attack Vector: local
Attack Complexity: high
Privileges Required: high
User Interaction: required
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: low

Description

AI Translation Available

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.

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
https://github.com/bytecodealliance/wasmtime/security/advis…
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hgjw-h833…
https://www.vulncheck.com/advisories/wasmtime-before-24.0.1…
https://www.vulncheck.com/advisories/wasmtime-before-24.0.12-25.0.0-before-36.0…