{"cve":"CVE-2024-45311","nvd":{"published":"2024-09-02T18:15:37.373","modified":"2026-06-17T07:54:00.150","status":"Analyzed","description":"Quinn is a pure-Rust, async-compatible implementation of the IETF QUIC transport protocol. As of quinn-proto 0.11, it is possible for a server to `accept()`, `retry()`, `refuse()`, or `ignore()` an `Incoming` connection. However, calling `retry()` on an unvalidated connection exposes the server to a likely panic in the following situations:  1. Calling `refuse` or `ignore` on the resulting validated connection, if a duplicate initial packet is received. This issue can go undetected until a server's `refuse()`/`ignore()` code path is exercised, such as to stop a denial of service attack. 2. Accepting when the initial packet for the resulting validated connection fails to decrypt or exhausts connection IDs, if a similar initial packet that successfully decrypts and doesn't exhaust connection IDs is received. This issue can go undetected if clients are well-behaved. The former situation was observed in a real application, while the latter is only theoretical.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-670"],"references":["https://github.com/quinn-rs/quinn/blob/bb02a12a8435a7732a1d762783eeacbb7e50418e/quinn-proto/src/endpoint.rs#L213","https://github.com/quinn-rs/quinn/commit/e01609ccd8738bd438d86fa7185a0f85598cb58f","https://github.com/quinn-rs/quinn/security/advisories/GHSA-vr26-jcq5-fjj8"],"products":["quinn_project:quinn"],"source":"nvd","synced_at":"2026-10-19T21:54:16.205165117+00:00"},"epss":{"cve":"CVE-2024-45311","score":0.00568,"percentile":0.47074,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vr26-jcq5-fjj8","url":"https://osv.dev/vulnerability/GHSA-vr26-jcq5-fjj8","summary":"Denial of service in quinn-proto when using `Endpoint::retry()`","modified":"2026-09-10T03:50:18.985882808Z","packages":[{"ecosystem":"crates.io","name":"quinn-proto","purl":"pkg:cargo/quinn-proto","ranges":[">=0.11.0 <0.11.7"],"fixed":["0.11.7"]}]},{"id":"RUSTSEC-2024-0373","url":"https://osv.dev/vulnerability/RUSTSEC-2024-0373","summary":"`Endpoint::retry()` calls can lead to panicking","modified":"2024-09-08T02:12:03.879922Z","packages":[{"ecosystem":"crates.io","name":"quinn-proto","purl":"pkg:cargo/quinn-proto","ranges":[">=0.11.0 <0.11.7"],"fixed":["0.11.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}