{"id":"GHSA-vh9x-phq6-fx54","summary":"Duplicate Advisory: Denial of service via malicious preflight requests in github.com/rs/cors","details":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-mh55-gqvf-xfwm. This link is maintained to preserve external references.\n\n### Original Description\nMiddleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.","modified":"2025-08-06T22:09:08Z","published":"2025-08-06T21:31:40Z","withdrawn":"2025-08-06T22:09:08Z","database_specific":{"nvd_published_at":"2025-08-06T21:15:29Z","cwe_ids":["CWE-770"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2025-08-06T22:09:08Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47908"},{"type":"WEB","url":"https://github.com/rs/cors/issues/170"},{"type":"WEB","url":"https://github.com/rs/cors/pull/171"},{"type":"PACKAGE","url":"https://github.com/rs/cors"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2024-2883"}],"affected":[{"package":{"name":"github.com/rs/cors","ecosystem":"Go","purl":"pkg:golang/github.com/rs/cors"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.9.0"},{"fixed":"1.11.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/08/GHSA-vh9x-phq6-fx54/GHSA-vh9x-phq6-fx54.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/E:U"}]}