{"id":"BIT-discourse-2025-68934","summary":"Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint","details":"Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, authenticated users can submit crafted payloads to /drafts.json that cause O(n^2) processing in Base62.decode, tying up workers for 35-60 seconds per request. This affects all users as the shared worker pool becomes exhausted. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. Lowering the max_draft_length site setting reduces attack surface but does not fully mitigate the issue, as payloads under the limit can still trigger the slow code path.","aliases":["CVE-2025-68934","GHSA-vwjh-vrx9-9849"],"modified":"2026-09-08T08:46:18.997863743Z","published":"2026-02-02T08:42:23.259Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-vwjh-vrx9-9849"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-68934"}],"affected":[{"package":{"name":"discourse","ecosystem":"Bitnami","purl":"pkg:bitnami/discourse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.5.4"},{"introduced":"2025.11.0"},{"fixed":"2025.11.2"},{"introduced":"2025.12.0"},{"fixed":"2026.1.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-68934.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.9.0"}