Vulnerability RUSTSEC-2026-0006
Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
8 months ago
January 26, 2026 at 12:00 PM UTC
Wasmtime segfault or unused out-of-sandbox load with `f64.copysign` operator on x86-64
29.0.0 - 36.0.4
29.0.0 - 36.0.4
Summary
Wasmtime segfault or unused out-of-sandbox load with `f64.copysign` operator on x86-64
Details
This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-vc8c-j3xm-xj73 For more information see the GitHub-hosted security advisory.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Low Risk
9 days ago
Wasmtime: Preemption and traps during bulk operations enable breaking internal VM state
46.0.0 - 46.0.1 and 47.0.0 - 47.0.2 GHSA-2hw9-mc66-jc2q
46.0.0 - 46.0.1 and 47.0.0 - 47.0.2 GHSA-2hw9-mc66-jc2q
Unknown
10 days ago
Mis-typed WebAssembly tag imports can lead to GC heap corruption
47.0.0 - 48.0.3 RUSTSEC-2026-0325
47.0.0 - 48.0.3 RUSTSEC-2026-0325
Medium Risk
10 days ago
Rooting for GC values live across `try_call` may be missing, causing GC heap corruption
47.0.0 - 48.0.3 RUSTSEC-2026-0326
47.0.0 - 48.0.3 RUSTSEC-2026-0326
Unknown
10 days ago
Wasmtime component async-lifted callback result count is unvalidated, causing a native stack buffer overflow
39.0.0 - 48.0.3 RUSTSEC-2026-0327
39.0.0 - 48.0.3 RUSTSEC-2026-0327
Medium Risk
18 days ago
`call_ref` and exception `catch` can drop some fuel accounting, leading to exponential fuel amplification
47.0.0 - 48.0.2 RUSTSEC-2026-0315
47.0.0 - 48.0.2 RUSTSEC-2026-0315
Impacted packages
Timeline
Published
8 months ago
January 26, 2026 at 12:00 PM UTC
Fixed (36.0.5)
8 months ago
January 26, 2026 at 11:23 PM UTC
Fixed (41.0.1)
8 months ago
January 27, 2026 at 12:22 AM UTC
Fixed (40.0.3)
8 months ago
January 27, 2026 at 12:26 AM UTC
Last Modified
1 hour ago
October 12, 2026 at 06:00 PM UTC