# Wasmtime's April 9, 2026 Security Advisories

DevFeed: [Wasmtime's April 9, 2026 Security Advisories](<https://devfeed.tech/articles/wasmtime-s-april-9-2026-security-advisories-15143.md>)

Original publisher: [Read original article](<https://bytecodealliance.org/articles/wasmtime-security-advisories>)

Author: The Wasmtime Project Maintainers

Published: 2026-04-09T00:00:00Z

Content type: news

Language: en

Sources: [Bytecode Alliance](<https://devfeed.tech/sources/bytecode-alliance.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [releases](<https://devfeed.tech/topics/releases.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [WebAssembly](<https://devfeed.tech/topics/web-assembly.md>), [Machine Learning, Security Attacks](<https://devfeed.tech/topics/machine-learning-security-attacks.md>), [Mozilla](<https://devfeed.tech/topics/mozilla.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [attacks](<https://devfeed.tech/tags/attacks.md>), [audit](<https://devfeed.tech/tags/audit.md>), [fuzzing](<https://devfeed.tech/tags/fuzzing.md>), [llm](<https://devfeed.tech/tags/llm.md>), [mozilla](<https://devfeed.tech/tags/mozilla.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [release](<https://devfeed.tech/tags/release.md>), [releases](<https://devfeed.tech/tags/releases.md>), [rust](<https://devfeed.tech/tags/rust.md>), [security](<https://devfeed.tech/tags/security.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>), [webassembly](<https://devfeed.tech/tags/webassembly.md>)

## AI overview

The Wasmtime team released versions 43.0.1, 42.0.2, 36.0.7, and 24.0.7 with fixes for 12 security advisories, including two rated Critical. The team says 11 advisories were found using new LLM-based tools and recommends that users upgrade.

## Source excerpt

A new world for security-critical projects