{"id":"GHSA-fx4f-mhw4-qm7j","summary":"vibeio-http has a DoS vulnerability in HTTP/1.x chunked encoding parser triggered by maliciously crafted chunk lengths","details":"When using the affected versions of the `vibeio-http` crate, an attacker could craft a malicious HTTP/1.x request with a large chunk length (between `usize::MAX - 1` and `usize::MAX` inclusive) and send it, causing the server to crash (integer overflow panic in debug builds, split_to out of bounds panic in release builds).\n\nThis was fixed in `vibeio-http` 0.3.2 by erroring on the chunk length if it exceeds `usize::MAX - 2` (using `checked_add()` instead of `+` operator), preventing integer overflow.","aliases":["RUSTSEC-2026-0181"],"modified":"2026-08-25T02:55:59.491165582Z","published":"2026-08-24T22:05:02Z","database_specific":{"cwe_ids":["CWE-770"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-08-24T22:05:02Z","nvd_published_at":null},"references":[{"type":"PACKAGE","url":"https://github.com/ferronweb/vibeio-http"},{"type":"WEB","url":"https://github.com/ferronweb/vibeio-http/blob/main/CHANGELOG.md#vibeio-http-032"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2026-0181.html"}],"affected":[{"package":{"name":"vibeio-http","ecosystem":"crates.io","purl":"pkg:cargo/vibeio-http"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.3.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-fx4f-mhw4-qm7j/GHSA-fx4f-mhw4-qm7j.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"}]}