CVE-2026-115381 | BDVDB-2026-394656 Detail

Description#

Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 contains an unbounded memory allocation in the wasmtime-wasi WASIp2 write-zeroes method of SinkOutputStream, the default stream used when stdout/stderr are not configured. A malicious WebAssembly guest can request huge zero-filled writes, exhausting host memory and causing denial of service.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-10-22Record published in the CVE List.
2. Version 22026-10-26Most recent update recorded in the CVE List.