AZL-111437
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-111437.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-111437
- Upstream
- Published
- 2026-10-23T22:16:58Z
- Modified
- 2026-10-29T14:16:54Z
- Summary
- CVE-2026-115889 affecting package rust 1.96.1-2
- Details
-
Wasmtime is a runtime for WebAssembly. Prior to 36.0.19 and 43.0.0, the Cranelift compiler backend bit-packs SSA value indices in a way that can silently overflow in release builds when compiling a sufficiently large or specially crafted Wasm function with many SSA values. The overflow can make Cranelift reference incorrect IR values, causing arbitrary miscompilation, type confusion, and other attacker-controlled effects that may escape the Wasm sandbox on any architecture using the default Cranelift backend. This issue is fixed in versions 36.0.19 and 43.0.0.
- References