CVE-2026-119131
Medium · 5.3CVSS
5.3
EPSS
0.3%
Published
Oct 29, 2026
CISA due date
—
The record
Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability in wasmtime-wasi-http that lets guests crash the host by sending long request URLs. Guests can use set-path-with-query with a '?' after byte 65535, overflowing a u16 index in the http crate and triggering a host panic.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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