Vulnerability RUSTSEC-2026-0356
Medium Risk
MEDIUM RISK
CVSS Score: 5.3
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
17 hours ago
October 14, 2026 at 12:00 PM UTC
Panic on erroneous call-to-host from guest realloc call
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2
Summary
Panic on erroneous call-to-host from guest realloc call
Details
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-7v24-42x9-pxf7 For more information see the GitHub-hosted security advisory.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Unknown
17 hours 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
17 hours 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
17 hours 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
Unknown
17 hours ago
Out-of-bounds zero-length stream writes can panic
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0357
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0357
Unknown
17 hours ago
Yielding in a component start function can lead to a host panic
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0358
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0358
Impacted packages
Timeline
Published
17 hours ago
October 14, 2026 at 12:00 PM UTC
Fixed (48.0.6)
12 hours ago
October 14, 2026 at 04:59 PM UTC
Fixed (49.0.3)
12 hours ago
October 14, 2026 at 05:11 PM UTC
Last Modified
8 hours ago
October 14, 2026 at 08:30 PM UTC