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RUSTSEC-2026-0294

Unsoundness in UTF-8 'String' trait

Details

The String API in iceoryx2-bb-container exposes its contents as mutable bytes through safe APIs, while String::as_str() converts those bytes into a Rust string slice without validating UTF-8. An application can therefore create an invalid &str and trigger undefined behavior using entirely safe Rust.

The API methods `as_mut_bytes` and `deref_mut` where removed from the String API and their implementations (PolymorphicString, RelocatableString, and StaticString ) without replacement. Link to Pull-Request: https://github.com/eclipse-iceoryx/iceoryx2/pull/1956

Are you affected?

Enter the version of the package you're using.

Affected packages

crates.io/iceoryx2-bb-container

Introduced in: 0.0.0-0Fixed in: 0.10.0

Upgrade iceoryx2-bb-container to 0.10.0 or newer (ecosystem crates.io).

References

https://crates.io/crates/iceoryx2-bb-container[PACKAGE]
https://rustsec.org/advisories/RUSTSEC-2026-0294.html[ADVISORY]
https://github.com/eclipse-iceoryx/iceoryx2/pull/1956[WEB]