Description
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, regular users could route direct S3 multipart uploads through ExternalUploadManager into the admin backup store. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
discourse discourse
>= 2026.1.0-latest, < 2026.1.5affected>= 2026.4.0-latest, < 2026.4.2affected>= 2026.5.0-latest, < 2026.5.1affected
References
- https://github.com/discourse/discourse/security/advisories/GHSA-3mvf-q9rg-w6m7 ↗
- https://github.com/discourse/discourse/commit/1f1ded8dd361d81786bff17b35e1138d6ee299c0 ↗
- https://github.com/discourse/discourse/commit/7ddde266617b452152c1bf5f903f6c07be38fc40 ↗
- https://github.com/discourse/discourse/commit/a53df26dcf7e50ce2b20bfd5454a0c9d44b8fc7d ↗
- https://github.com/discourse/discourse/commit/abaa664c5df84026efb2ca264ba0f5586c3f2b01 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.1.5 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.4.2 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.5.1 ↗
- https://github.com/discourse/discourse/releases/tag/v2026.6.0 ↗