GHSA-hv43-9665-59p4MediumCVSS 4.8
Wasmtime from 49.0.0 before 49.0.3 contains a denial-of-service vulnerability that allows a...
🔗 CVE IDs covered (1)
📋 Description
Wasmtime from 49.0.0 before 49.0.3 contains a denial-of-service vulnerability that allows a WebAssembly guest to trigger a host panic by transcoding overlapping strings in fused adapters. Attackers can make a same-instance component-to-component call transferring a string whose source and destination alias each other, crashing the host instead of raising a trap.
🔗 References (4)
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-54p9-vhhq-8f7q
- https://nvd.nist.gov/vuln/detail/CVE-2026-119132
- https://www.vulncheck.com/advisories/wasmtime-49.0.0-before-49.0.3-host-panic-via-overlapping-string-transcode-in-fused-adapter
- https://github.com/advisories/GHSA-hv43-9665-59p4