diff --git a/crates/crossbeam-epoch/RUSTSEC-0000-0000.md b/crates/crossbeam-epoch/RUSTSEC-0000-0000.md
new file mode 100644
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@@ -0,0 +1,17 @@
+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "crossbeam-epoch"
+date = "2026-07-06"
+url = "https://github.com/crossbeam-rs/crossbeam/pull/1276"
+keywords = ["NULL-pointer-dereference"]
+aliases = []
+
+[versions]
+patched = [">= 0.9.20"]
+unaffected = ["< 0.9.0"]
+```
+
+# 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.