Wasmtime before 36.0.17, 37.0.0 before 48.0.4, and 49.0.0 before 49.0.2 Unbounded Host Memory Allocation via SinkOutputStream write-zeroes

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-115381 · Microsoft / collected KEV context

RUSTSEC-2026-0322

GHSA-gqmc-89g8-p25r

cve-program · CVE-2026-115381

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-gqmc-89g8-p25r
• https://www.vulncheck.com/advisories/wasmtime-before-36.0.17-37.0.0-before-48.0.4-and-49.0.0-before-49.0.2-unbounded-host-memory-allocation-via-sinkoutputstream-write-zeroes

nvd · CVE-2026-115381

• https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-gqmc-89g8-p25r
• https://www.vulncheck.com/advisories/wasmtime-before-36.0.17-37.0.0-before-48.0.4-and-49.0.0-before-49.0.2-unbounded-host-memory-allocation-via-sinkoutputstream-write-zeroes

osv · RUSTSEC-2026-0322

• https://crates.io/crates/wasmtime-wasi
• https://rustsec.org/advisories/RUSTSEC-2026-0322.html
• https://github.com/bytecodealliance/wasmtime/pull/14482

No related operational record is retained in the current change model.