RUSTSEC-2026-0204
Invalid pointer dereference in `fmt::Pointer` impl for `Atomic` and `Shared` when the underlying pointer is invalid
Affected versions of fmt::Display dereference the underlying pointer. This causes a invalid pointer dereference e.g., when a pointer created with Atomic::null or Shared::null. fmt::Debug impls and pre-0.9 fmt::Display impls, which do not dereference pointers, are not affected by this issue.
What each source reports
OSV No score
Invalid pointer dereference in `fmt::Pointer` impl for `Atomic` and `Shared` when the underlying pointer is invalid
Affected versions of fmt::Display dereference the underlying pointer. This causes a invalid pointer dereference e.g., when a pointer created with Atomic::null or Shared::null. fmt::Debug impls and pre-0.9 fmt::Display impls, which do not dereference pointers, are not affected by this issue.
- Record
RUSTSEC-2026-0204- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
crossbeam-epochcrates.io |
0.9.0 up to 0.9.20 | 0.9.20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
RUSTSEC-2026-0204 is a vulnerability with no CVSS score yet in crossbeam-epoch, published July 6, 2026. No source lists public exploit code. Fixed in crossbeam-epoch 0.9.20.