CVE-2026-115384 | BDVDB-2026-394659 Detail

Description#

Wasmtime 39.0.0 before 48.0.4 and 49.0.0 before 49.0.2 contains a stack buffer overflow vulnerability that allows malicious guests to write ~16KB to the native stack via unvalidated async callback result types. Attackers can supply components with mistyped component-model-async callback functions to overwrite return addresses, crashing the host or escaping the sandbox.

Impact#

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Exploit#

History#

1. Version 12026-10-22Record published in the CVE List.
2. Version 22026-10-29Most recent update recorded in the CVE List.