RUSTSEC-2026-0244 `setlocale` and `TextDomain::init` are unsound as they access environment with no synchronization

Not scored Published

Unsound locale initialization in multi-threaded Rust programs can cause undefined behavior, potentially leading to code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Not stated
Victim action needed
Not needed
Fix
Available

What is RUSTSEC-2026-0244?

RUSTSEC-2026-0244 is a vulnerability in gettext-rs, published on 6 Aug 2026.

Official description

setlocale and TextDomain::init are unsound and may allow safe code to exhibit undefined behavior when called in a multi-threaded program.

The flaw is fixed in 0.8.0 by marking these functions unsafe and documenting the conditions under which they can be called safely.

Which versions are affected by RUSTSEC-2026-0244?

1 open source package ship an affected version, including gettext-rs.

PackageAffectedFixed in
gettext-rs crates.ioFrom 0.0.0-00.8.0

How do I fix RUSTSEC-2026-0244?

Upgrade gettext-rs to 0.8.0 or later.

Is RUSTSEC-2026-0244 being exploited?

There is no known exploitation of RUSTSEC-2026-0244 in the wild and no public exploit code.

Sources

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