Description
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, secure uploads could be exposed by pull_hotlinked_images when an attacker knew the secured upload URL and the secure_uploads site setting was enabled. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| discourse | discourse | >= 2026.1.0-latest, < 2026.1.5; >= 2026.4.0-latest, < 2026.4.2; >= 2026.5.0-latest, < 2026.5.1 |
References
- https://github.com/discourse/discourse/commit/5807c426880eadf248006e851604fc9284327ce5Patch
- https://github.com/discourse/discourse/commit/8b4a959b251a856a9c911fb9f2ac34fbc31a7471Patch
- https://github.com/discourse/discourse/commit/eff53af26367ae0dcb3a426954d233e8c7449f95Patch
- https://github.com/discourse/discourse/commit/fa74e0dec7341a858ab83a1977fa52629bced1aaPatch
- https://github.com/discourse/discourse/releases/tag/v2026.1.5Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.4.2Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.5.1Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.6.0Release Notes
- https://github.com/discourse/discourse/security/advisories/GHSA-3876-w96v-8v38Vendor Advisory
Timeline
- Published
- Jul 9, 2026
- Last modified
- Jul 14, 2026
- NVD status
- Analyzed