Vulnerability RUSTSEC-2026-0379
Critical
CRITICAL RISK
CVSS Score: 9.9
Score Range: 9.0–10.0
Critical severity vulnerabilities (CVSS 9.0–10.0). These represent the highest impact issues.
1 day ago
October 19, 2026 at 12:00 PM UTC
Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instruction
0.0.0 - 36.0.18 and 37.0.0 - 48.0.6 and 49.0.0 - 49.0.3
0.0.0 - 36.0.18 and 37.0.0 - 48.0.6 and 49.0.0 - 49.0.3
Summary
Cranelift backend on aarch64 can jump to incorrect target on large Wasm `br_table` instruction
Details
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-mghf-wjfp-p5xm For more information see the GitHub-hosted security advisory.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Unknown
1 day ago
Panic lowering a host-created component model stream into a guest that expects a different payload type
46.0.0 - 48.0.6 and 49.0.0 - 49.0.3 RUSTSEC-2026-0378
46.0.0 - 48.0.6 and 49.0.0 - 49.0.3 RUSTSEC-2026-0378
Critical
1 day ago
Bit-packing in Cranelift compiler causes silent overflow and miscompilation
0.0.0 - 36.0.18 and 37.0.0 - 42.0.2 RUSTSEC-2026-0380
0.0.0 - 36.0.18 and 37.0.0 - 42.0.2 RUSTSEC-2026-0380
Unknown
6 days ago
Panic when invoking an async-lifted function via `call`
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0353
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0353
Unknown
6 days ago
Host panic when component `call_async` is cancelled under some conditions
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0354
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0354
Unknown
6 days ago
Panic viewing component model stream or future as the wrong type
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0355
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0355
Impacted packages
Timeline
Published
1 day ago
October 19, 2026 at 12:00 PM UTC
Fixed (36.0.19)
22 hours ago
October 19, 2026 at 07:05 PM UTC
Fixed (49.0.4)
21 hours ago
October 19, 2026 at 07:15 PM UTC
Fixed (48.0.7)
21 hours ago
October 19, 2026 at 07:16 PM UTC
Last Modified
5 hours ago
October 20, 2026 at 11:15 AM UTC