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RUSTSEC-2026-0380

Bit-packing in Cranelift compiler causes silent overflow and miscompilation

Reported
Issued
Package
wasmtime (crates.io)
Type
Vulnerability
Aliases
References
CVSS Score
9.9 CRITICAL
CVSS Details
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality Impact
High
Integrity Impact
High
Availability Impact
High
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Patched
  • >=36.0.19, <37.0.0
  • >=43.0.0

Description

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-897f-g5gm-fmxm For more information see the GitHub-hosted security advisory.

Advisory available under CC0-1.0 license.