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Vulnerability Database · crates.io · wasmtime · Version

wasmtime 22.0.1

22.0.1 is affected by 30 vulnerabilities.

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

Critical 4 High 1 Medium 17 Low 7 Unrated 1

All wasmtime versions & vulnerabilities → Search the database for this package →
Released 09 Oct 2024 Licence Apache-2.0 WITH LLVM-exception Also known from other sources 0 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 22.0.1 vulnerabilities

30 vulnerabilities cover wasmtime 22.0.1. Scroll the table for all of them, or open the full list in the database.

Vulnerability Severity Fixed version Disclosed
Critical Bit-Packing Overflow in Wasmtime Compiler 9.9 critical 36.0.19 19 Oct 2026
Critical Vulnerability in Wasmtime: Incorrect Jump Target on Large Wasm br_table Instruction 9.9 critical 36.0.19 19 Oct 2026
CVE-2026-34987: Wasmtime Package Vulnerability Allows Sandbox-Escaping Memory Access 9.0 critical 36.0.7 09 Apr 2026
CVE-2026-34971: Wasmtime Package Miscompiled Guest Heap Access Vulnerability 9.0 critical 36.0.7 09 Apr 2026
Filesystem Sandbox Escape in Wasmtime: Trailing Slash Vulnerability 8.8 high 24.0.13 20 Aug 2026
CVE-2026-34941: Wasmtime Heap OOB Read Vulnerability in UTF-16 to Latin1+UTF16 Transcoding 6.9 medium 24.0.7 09 Apr 2026
CVE-2026-34941: Wasmtime Heap OOB Read Vulnerability in UTF-16 to Latin1+UTF16 String Transcoding 6.9 medium 24.0.7 09 Apr 2026
CVE-2026-27572: Wasmtime Denial of Service Vulnerability Due to Excessive Header Fields 6.9 medium 24.0.6 24 Feb 2026
CVE-2026-27204: Resource Exhaustion Vulnerability in Wasmtime Package 6.9 medium 24.0.6 24 Feb 2026
CVE-2026-27572: Wasmtime Package Panic Due to Excessive Fields in wasi:http/types.fields 6.9 medium 24.0.6 24 Feb 2026
Wasmtime Package Vulnerability: Component-Model Handle Tables Capped Per Instance 6.2 medium 36.0.18 14 Oct 2026
CVE-2026-35195: Wasmtime Out-of-Bounds Write Vulnerability in Component Model Strings 6.1 medium 24.0.7 09 Apr 2026
CVE-2026-35186: Wasmtime Package - Improperly Masked Return Value Vulnerability 6.1 medium 36.0.7 09 Apr 2026
CVE-2026-35195: Wasmtime Out-of-Bounds Write Vulnerability 6.1 medium 24.0.7 09 Apr 2026
CVE-2026-34942: Wasmtime String Transcoding Panic Due to Misalignment 5.9 medium 24.0.7 09 Apr 2026
CVE-2026-34946: Wasmtime Host Panic Due to `table.fill` Execution 5.9 medium 36.0.7 09 Apr 2026
CVE-2026-34942: Wasmtime Panic Due to Misaligned UTF-16 String Transcoding 5.9 medium 24.0.7 09 Apr 2026
CVE-2026-27204: Wasmtime Resource Exhaustion Vulnerability in WASI Implementations 5.9 medium 24.0.6 24 Feb 2026
CVE-2026-34943: Wasmtime Panic on Flags Component Value Lifting 5.6 medium 24.0.7 09 Apr 2026
CVE-2026-34943: Wasmtime Panic on Flags Component Value 5.6 medium 24.0.7 09 Apr 2026
CVE-2026-34944: Wasmtime Segfault Risk with f64x2.splat on x86-64 Platforms 4.1 medium 24.0.7 09 Apr 2026
CVE-2026-34944: Wasmtime Segfault Vulnerability with f64x2.splat Operator 4.1 medium 24.0.7 09 Apr 2026
Type Index Confusion in Wasmtime Package - CVSS 3.8 3.8 low 24.0.12 31 Jul 2026
CVE-2025-53901: Wasmtime Host Panic Due to fd_renumber Function Vulnerability 3.3 low 24.0.4 18 Jul 2025
CVE-2026-34988: Wasmtime Data Leakage Between Pooling Allocator Instances 2.3 low 36.0.7 09 Apr 2026
CVE-2026-34945: Wasmtime Host Data Leakage Vulnerability 2.3 low 36.0.7 09 Apr 2026
CVE-2024-51745: Wasmtime Filesystem Sandbox Bypass via Superscript Device Filenames 2.3 low 24.0.2 05 Nov 2024
CVE-2025-64345: wasmtime - Unsound API Access to WebAssembly Shared Linear Memory 1.8 low 24.0.5 11 Nov 2025
Dynamic Record Lifting Vulnerability in Wasmtime: Allocation Beyond Hostcall Fuel Limit 1.0 low 36.0.16 24 Sep 2026
CVE-2024-51745: Wasmtime Incomplete Sandbox for Windows Device Filenames N/A unrated 24.0.2 02 Nov 2024

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Questions

About wasmtime 22.0.1

Is wasmtime 22.0.1 vulnerable?

Yes. 30 vulnerabilities in the Vulert database cover wasmtime 22.0.1: 4 critical, 1 high, 17 medium and 7 low, plus 1 not yet rated. Each entry above names the fixed version to move to.

Is 22.0.1 the latest release of wasmtime?

No. 22.0.1 was published 09 Oct 2024, 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?

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