{"schema_version":"1.9.0","id":"RUSTSEC-2026-0242","published":"2026-08-09T12:00:00Z","modified":"2026-10-12T18:00:14.905021984Z","aliases":["GHSA-7hc7-h3f2-r4j6"],"summary":"Safe ErrorRegistry APIs can cause undefined behavior","details":"All published versions of `dcrypt-api` before 2.0.0 exposed safe\n`ErrorRegistry` operations that could trigger undefined behavior when the\ndefault `std` feature was enabled.\n\nStored `Box<E>` values were erased to raw pointers and later deallocated as\n`Box<()>`. The `get_error<E>` operation also performed an unchecked cast to a\ncaller-selected type. Finally, concurrent replacement or clearing could free a\nvalue while another thread cloned it. Ordinary safe Rust could therefore cause\nmismatched deallocation, type confusion, and use-after-free. Crates that\nre-exported this API are affected transitively.\n\nVersion 2.0.0 replaces the raw pointers with owned `Box<dyn Any + Send>` values\nbehind a mutex, performs checked downcasts, and uses a mutation generation so\nconcurrent stores and clears win safely. There is no reliable workaround while\ncalling the affected registry API. Upgrade to 2.0.0 or later and avoid\nprocess-global error state where possible.","affected":[{"package":{"name":"dcrypt-api","ecosystem":"crates.io","purl":"pkg:cargo/dcrypt-api"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"2.0.0"}]}],"ecosystem_specific":{"affected_functions":null,"affects":{"arch":[],"functions":[],"os":[]}},"database_specific":{"categories":["memory-corruption","thread-safety"],"cvss":null,"informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2026-0242.json"}}],"references":[{"type":"PACKAGE","url":"https://crates.io/crates/dcrypt-api"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2026-0242.html"},{"type":"WEB","url":"https://github.com/ioi-foundation/dcrypt/commit/c99cc86f0ee353010cd202cbcd2c310371b0bbb8"},{"type":"WEB","url":"https://github.com/ioi-foundation/dcrypt/commit/c99cc86f0ee353010cd202cbcd2c310371b0bbb8"},{"type":"WEB","url":"https://github.com/ioi-foundation/dcrypt/releases/tag/v2.0.0"}],"database_specific":{"license":"CC0-1.0"}}