Vulnerability RUSTSEC-2026-0363
Medium Risk
MEDIUM RISK
CVSS Score: 6.2
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
Component-model handle tables are capped only per instance and charged to no limit
0.0.0 - 36.0.17 and 37.0.0 - 48.0.5 and 49.0.0 - 49.0.2
0.0.0 - 36.0.17 and 37.0.0 - 48.0.5 and 49.0.0 - 49.0.2
Summary
Component-model handle tables are capped only per instance and charged to no limit
Details
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-q554-3cjc-rx7p 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
Medium Risk
17 hours ago
Panic on erroneous call-to-host from guest realloc call
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0356
46.0.0 - 48.0.5 and 49.0.0 - 49.0.2 RUSTSEC-2026-0356
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
Impacted packages
Timeline
Published
17 hours ago
October 14, 2026 at 12:00 PM UTC
Fixed (36.0.18)
13 hours ago
October 14, 2026 at 03:36 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