diff --git a/crates/kamadak-exif/RUSTSEC-0000-0000.md b/crates/kamadak-exif/RUSTSEC-0000-0000.md
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+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "kamadak-exif"
+date = "2021-01-04"
+url = "https://github.com/kamadak/exif-rs/commit/1b05eab57e484cd7d576d4357b9cda7fdc57df8c"
+categories = ["denial-of-service"]
+cvss = "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
+keywords = ["untrusted-data", "dos"]
+aliases = ["CVE-2021-21235", "GHSA-px9g-8hgv-jvg2"]
+
+[affected]
+functions = { "kamadak_exif::Reader::read_from_container" = [">= 0.5.2, < 0.5.3"] }
+
+[versions]
+patched = [">= 0.5.3"]
+unaffected = ["< 0.5.2"]
+
+```
+# kamadak-exif DoS with untrusted PNG data
+
+Attacker crafted data can cause a infinite loop leading to DoS if used with untrusted data.
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