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 m…
Exact source revision recorded 30 Oct 2026 03:49:22 UTC. It does not establish the source's current position. Latest evidence.
nvd · CVE-2026-119133
PublishedNVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Deferred
Weakness classifications: CWE-758
Original publisher date fields
published: 2026-10-29T16:18:06.423
lastModified: 2026-10-29T18:17:30.473
No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.
Original source record · Cite this exact observation · Complete original publisher JSON