CVE-2026-27204 describes a denial-of-service vulnerability in Wasmtime, a WebAssembly runtime, affecting versions prior to 24.0.6, 36.0.6, 40.0.4, 41.0.4, and 42.0.0. This flaw allows guest-controlled resource exhaustion on the host due to Wasmtime's inadequate limits on resource allocations, leading to a denial of service. Rated Medium severity (CVSS 6.5), it can be exploited remotely with low complexity and no user interaction, resulting in high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 24.0.6CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
>= 25.0.0, < 36.0.6CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
>= 37.0.0, < 40.0.4CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* | ||
>= 41.0.0, < 41.0.4CPE matchmatch criteria | cpe:2.3:a:bytecodealliance:wasmtime:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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