6.5

CVE-2025-68934

Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Discourse ≫ Discourse SwEditionstable Version < 3.5.4
Discourse ≫ Discourse SwEditionstable Version >= 2025.11.0 < 2025.11.2
Discourse ≫ Discourse Version2025.12.0 SwEditionstable
Discourse ≫ Discourse Version2026.1.0 SwEditionstable
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.141
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

https://github.com/discourse/discourse/security/advisories/GHSA-vwjh-vrx9-9849
Third Party Advisory
Mitigation