PT-2026-121561
CVE-2026-115383
·
Published
2026-10-22
·
Updated
2026-10-22
Description by
CVSS 3.1
4.8
MediumMetricsAV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
Wasmtime 47.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains an improper validation vulnerability that accepts components whose core modules import WebAssembly tags with a subtype of the original type. Malicious guests can mis-type exception object payloads to corrupt the GC heap, causing Wasmtime to panic when the exceptions proposal is enabled.
Found an issue in the description? Have something to add? Feel free to write us 👾