Safe ErrorRegistry APIs can cause undefined behavior

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

All published versions of `dcrypt-api` before 2.0.0 exposed safe `ErrorRegistry` operations that could trigger undefined behavior when the default `std` feature was enabled. Stored `Box<E>` values were erased to raw pointers and later deallocated as `Box<()>`. The `get_error<E>` operation also performed an unchecked cast to a caller-selected type. Finally, concurrent replacement or clearing could free a value while another thread cloned it. Ordinary safe Rust could therefore cause mismatched deallocation, type confusion, and use-after-free. Crates that re-exported this API are affected transitively. Version 2.0.0 replaces the raw pointers with owned `Box<dyn Any + Send>` values behind a mutex, performs checked downcasts, and uses a mutation generation so concurrent stores and clears win safely. There is no reliable workaround while calling the affected registry API. Upgrade to 2.0.0 or later and avoid process-global error state where possible.

Source published

9 Aug 2026 12:00:00 UTC

Source modified

12 Oct 2026 18:00:14 UTC

Observed here

24 Oct 2026 13:19:54 UTC

Source terms

OSV · upstream source license applies

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