Upcoming Security Release for Wasmtime on 2026-04-30
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Alex Crichton
Apr 27, 2026, 12:51:20 PMApr 27
to sec-an...@bytecodealliance.org
The Wasmtime project would like to announce a forthcoming security release of Wasmtime.
The release will be made available on 2026-04-30 at approximately 18:00 UTC. Additionally, an advisory will be made available on the same date and time at https://github.com/advisories.
The highest severity issue fixed in this release is MODERATE based on the classification scheme defined by CVSS.
The release will be made available on 2026-04-30 at approximately 18:00 UTC. Additionally, an advisory will be made available on the same date and time at https://github.com/advisories.
The highest severity issue fixed in this release is MODERATE based on the classification scheme defined by CVSS.
Alex Crichton
Apr 30, 2026, 1:12:33 PMApr 30
to sec-an...@bytecodealliance.org
[Update 2026-04-30] Security releases available
Wasmtime versions 36.0.8, 43.0.2, and 44.0.1 are now available on crates.io. Additionally, binary releases are available on Github for the Wasmtime C-API shared library and CLI at https://github.com/bytecodealliance/wasmtime/releases.
Wasmtime versions 36.0.8, 43.0.2, and 44.0.1 are now available on crates.io. Additionally, binary releases are available on Github for the Wasmtime C-API shared library and CLI at https://github.com/bytecodealliance/wasmtime/releases.
These releases fix the following security issue rated MODERATE:
Panic when allocating a table exceeding the size of the host's address space
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