Fiche vulnérabilité
CVE-2025-68659 : faille moyenne discourse discourse (CVSS 5.3)
Description
Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have an application level denial of service vulnerabilityin the username change functionality at try.discourse.org. The vulnerability allows attackers to cause noticeable server delays and resource exhaustion by sending large JSON payloads to the username preference endpoint PUT /u//preferences/username, resulting in degraded performance for other users and endpoints. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. No known workarounds are available.
En bref
- Sévérité
- Moyenne (CVSS 5.3)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Exploitation active
- Non signalée par la CISA
- Publication
- 28 janv. 2026
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- discourse discourse