Upcoming Security Release for Wasmtime on 2026-06-15
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Alex Crichton
Jun 10, 2026, 2:38:45 PM (14 days ago) Jun 10
to sec-an...@bytecodealliance.org
The Wasmtime project would like to announce a forthcoming security release of Wasmtime.
The releases will be made available on 2026-06-15 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 LOW based on the classification scheme defined by CVSS.
The releases will be made available on 2026-06-15 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 LOW based on the classification scheme defined by CVSS.
Alex Crichton
Jun 15, 2026, 1:26:53 PM (9 days ago) Jun 15
to sec-an...@bytecodealliance.org
[Update 2026-06-15] Security releases available
Wasmtime versions 45.0.2, 44.0.3, 36.0.11, and 24.0.10, 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.
Leak in WASIp1 `fd_renumber` implementation
Wasmtime versions 45.0.2, 44.0.3, 36.0.11, and 24.0.10, 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.
This release fixes the following security issues rated LOW:
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