GHSA-9283-62cg-q26hLowCVSS 2.6
Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in...
🔗 CVE IDs covered (1)
📋 Description
Wasmtime 47.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a memory misalignment flaw in VMContext layout that causes undefined behavior when modules contain an odd number of exception tags. A WebAssembly module with an odd tag count misaligns subsequent host fields in embedders with exceptions enabled, although no exploitation path is currently known.
🔗 References (4)
- https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-p79w-pv2r-29qp
- https://nvd.nist.gov/vuln/detail/CVE-2026-119133
- https://www.vulncheck.com/advisories/wasmtime-47.0.0-before-48.0.6-and-49.0.0-before-49.0.3-misaligned-vmcontext-via-exception-tags
- https://github.com/advisories/GHSA-9283-62cg-q26h