{"affected":[{"database_specific":{"categories":[],"cvss":null,"informational":"unsound","source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0294.json"},"ecosystem_specific":{"affected_functions":null,"affects":{"arch":[],"functions":["iceoryx2_bb_container::string::String::as_mut_bytes","iceoryx2_bb_container::string::String::deref_mut","iceoryx2_bb_container::string::polymorphic_string::PolymorphicString::as_mut_bytes","iceoryx2_bb_container::string::polymorphic_string::PolymorphicString::deref_mut","iceoryx2_bb_container::string::relocatable_string::RelocatableString::as_mut_bytes","iceoryx2_bb_container::string::relocatable_string::RelocatableString::deref_mut","iceoryx2_bb_container::string::static_string::StaticString::as_mut_bytes","iceoryx2_bb_container::string::static_string::StaticString::deref_mut"],"os":[]}},"package":{"ecosystem":"crates.io","name":"iceoryx2-bb-container","purl":"pkg:cargo/iceoryx2-bb-container"},"ranges":[{"events":[{"introduced":"0.0.0-0"},{"fixed":"0.10.0"},{"introduced":"0.11.0-0"}],"type":"SEMVER"}]}],"aliases":["GHSA-8mq4-3mwq-qvg6"],"database_specific":{"license":"CC0-1.0"},"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. \nAn application can therefore create an invalid &str and trigger undefined behavior using entirely safe Rust.\n\nThe API methods `as_mut_bytes` and `deref_mut` where removed from the String API and their implementations (PolymorphicString, RelocatableString, and StaticString ) without replacement.\nLink to Pull-Request: https://github.com/eclipse-iceoryx/iceoryx2/pull/1956","id":"RUSTSEC-2026-0294","modified":"2026-09-21T09:45:03.168416810Z","published":"2026-09-18T12:00:00Z","references":[{"type":"PACKAGE","url":"https://crates.io/crates/iceoryx2-bb-container"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0294.html"},{"type":"WEB","url":"https://github.com/eclipse-iceoryx/iceoryx2/pull/1956"}],"schema_version":"1.9.0","summary":"Unsoundness in UTF-8 'String' trait"}