Known Vulnerabilities for Wasmtime by Bytecodealliance

Listed below are 10 of the newest known vulnerabilities associated with "Wasmtime" by "Bytecodealliance".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-121441 json Wasmtime before 36.0.19, 37.0.0 before 48.0.7, and 49.0.0 before 49.0.4 contains a request smuggling vulnerability in wasi-ht... Not Provided 2026-11-03 2026-11-03
CVE-2026-121440 json Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 fails to check forwarded trailers against the WasiHttpHooks::is_forbid... Not Provided 2026-11-03 2026-11-03
CVE-2026-121439 json Wasmtime 46.0.0 before 48.0.7 and 49.0.0 before 49.0.4 contains a response splitting vulnerability in wasi-http p3 that allow... Not Provided 2026-11-03 2026-11-09
CVE-2026-119143 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows guest code to t... Not Provided 2026-10-29 2026-11-04
CVE-2026-119142 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability where dropping the Future r... Not Provided 2026-10-29 2026-10-29
CVE-2026-119141 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows malicious Wasm ... Not Provided 2026-10-29 2026-10-29
CVE-2026-119140 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows malicious compo... Not Provided 2026-10-29 2026-11-03
CVE-2026-119139 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a leftover assertion in component::Func::call that rejects gu... Not Provided 2026-10-29 2026-11-04
CVE-2026-119138 json Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability that allows pending calls t... Not Provided 2026-10-29 2026-10-29
CVE-2026-119137 json Wasmtime 42.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a stack overflow vulnerability that allows guests to crash th... Not Provided 2026-10-29 2026-10-29
Results limited to 10 most recent vulnerabilities

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