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Vulnerability Database · crates.io · wasmtime · Version

wasmtime 46.0.0

46.0.0 is affected by 14 vulnerabilities.

The vulnerabilities that cover this exact version are listed below with the fixed version to move to.

Critical 1 High 0 Medium 11 Low 2 Unrated 0

All wasmtime versions & vulnerabilities → Source repository Search the database for this package →
Released 22 Jun 2026 Licence Apache-2.0 WITH LLVM-exception Also known from other sources 28 Newer releases 234 Database updated 23/Oct/2026

Release and licence data published by crates.io. Licence information is not legal advice.

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01 Vulnerabilities affecting this version

wasmtime 46.0.0 vulnerabilities

14 vulnerabilities cover wasmtime 46.0.0. Scroll the table for all of them, or open the full list in the database.

Vulnerability Severity Fixed version Disclosed
Buffer Overflow Vulnerability in Wasmtime Package: Async-Lifted Callback Result Count Unvalidated 9.3 critical 48.0.4 02 Oct 2026
Heap Allocation Vulnerability in Wasmtime: Guest Controlled Size 6.9 medium 46.0.3 20 Aug 2026
Panic in Async-Lifted Function Calls in Wasmtime Package 5.9 medium 48.0.6 14 Oct 2026
Host Panic in Wasmtime Package Due to Call Async Cancellation 5.9 medium 48.0.6 14 Oct 2026
Panic in Wasmtime: Type Mismatch Vulnerability 5.9 medium 48.0.6 14 Oct 2026
Out-of-Bounds Zero-Length Stream Writes in Wasmtime - CVSS 5.9 Vulnerability 5.9 medium 48.0.6 14 Oct 2026
Host Panic Risk in Wasmtime Package Due to Yielding in Start Function 5.9 medium 48.0.6 14 Oct 2026
Panic Risk in Wasmtime Package: Vulnerability When Running Pending Calls After a Trap 5.9 medium 48.0.6 14 Oct 2026
Wasmtime Package Vulnerability: Async-EntryPoint Enforcement Issue 5.9 medium 48.0.6 14 Oct 2026
Panic Lowering Vulnerability in Wasmtime: Host-Created Component Model Stream Mismatch 5.7 medium 48.0.7 19 Oct 2026
Panic on Erroneous Call-to-Host in Wasmtime Package - CVE-2026-0356 5.3 medium 48.0.6 14 Oct 2026
Stack Overflow Vulnerability in Wasmtime: Recursive Types Issue 5.3 medium 48.0.6 14 Oct 2026
CVE-2026-104855: Wasmtime Vulnerability in Bulk Operations Leading to Internal VM State Exposure 2.0 low 46.0.2 02 Oct 2026
Preemption and Traps Vulnerability in Wasmtime: Breaking Internal VM State 2.0 low 46.0.2 31 Jul 2026

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Questions

About wasmtime 46.0.0

Is wasmtime 46.0.0 vulnerable?

Yes. 14 vulnerabilities in the Vulert database cover wasmtime 46.0.0: 1 critical, 0 high, 11 medium and 2 low. Each entry above names the fixed version to move to.

Is 46.0.0 the latest release of wasmtime?

No. 46.0.0 was published 22 Jun 2026, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.

How do I monitor wasmtime for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the wasmtime version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.