CVE-2025-68934 is a denial-of-service vulnerability affecting Discourse 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, causing an O(n^2) processing delay in Base62.decode, which exhausts the shared worker pool for 35-60 seconds per request. This vulnerability has a CVSS score of 6.5 (Medium), indicating a low-complexity network attack by a low-privileged user leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.5.4CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* | ||
>= 2025.11.0, < 2025.11.2CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* | ||
2025.12.0CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:2025.12.0:*:*:*:stable:*:*:* | ||
2026.1.0CPE matchmatch criteria | cpe:2.3:a:discourse:discourse:2026.1.0:*:*:*:stable:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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