{"id":"CVE-2023-49952","aliases":["BIT-mastodon-2023-49952","EUVD-2023-53847","GHSA-c2r5-cfqr-c553"],"status":"published","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.0047,"percentile":0.40975,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2024-11-18T00:00:00Z","modified":"2026-10-28T02:31:13Z","fixes":[{"ecosystem":"Bitnami","package":"mastodon","fixed_in":["4.1.17","4.2.9"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"mastodon","ranges":[{"type":"SEMVER","events":[{"introduced":"4.1.0"},{"fixed":"4.1.17"},{"introduced":"4.2.0"},{"fixed":"4.2.9"}]}]}],"products":[{"vendor":"joinmastodon","product":"mastodon"}],"references":[{"url":"https://github.com/mastodon/mastodon/security","tags":["Product","web"]},{"url":"https://github.com/mastodon/mastodon/security/advisories/GHSA-c2r5-cfqr-c553","tags":["Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49952","tags":["web","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49952.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-49952","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","status":"published","published":"2024-11-18T00:00:00Z","modified":"2024-11-19T15:39:43.146Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:13.368958Z"}],"euvd":[{"id":"EUVD-2023-53847","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","status":"published","published":"2024-11-18T00:00:00Z","modified":"2024-11-19T15:39:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-03T00:04:56.132572Z"}],"nvd":[{"id":"CVE-2023-49952","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","status":"published","published":"2024-11-18T18:15:05.927Z","modified":"2026-06-17T06:36:45.9Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:19.052418Z"}],"osv":[{"id":"CVE-2023-49952","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","status":"published","published":"2024-11-18T00:00:00Z","modified":"2026-10-28T02:31:13.436363324Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:34.72355Z"},{"id":"BIT-mastodon-2023-49952","description":"Mastodon 4.1.x before 4.1.17 and 4.2.x before 4.2.9 allows a bypass of rate limiting via a crafted HTTP request header.","status":"published","published":"2025-05-08T05:43:30.042Z","modified":"2026-09-08T08:48:13.196290508Z","updated_at":"2026-11-02T15:28:32.645004Z"}]}}