PT-2026-56996 · Discourse · Discourse

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-46413

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-46413

Affected Products

Discourse

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2026-46413 · Security Note
• https://github.com/discourse/discourse/releases/tag/v2026.6.0 · Note
• https://github.com/discourse/discourse/commit/7ddde266617b452152c1bf5f903f6c07be38fc40 · Note
• https://github.com/discourse/discourse/releases/tag/v2026.5.1 · Note
• https://github.com/discourse/discourse/commit/a53df26dcf7e50ce2b20bfd5454a0c9d44b8fc7d · Note
• https://github.com/discourse/discourse/security/advisories/GHSA-3mvf-q9rg-w6m7 · Note
• https://github.com/discourse/discourse/commit/abaa664c5df84026efb2ca264ba0f5586c3f2b01 · Note
• https://github.com/discourse/discourse/commit/1f1ded8dd361d81786bff17b35e1138d6ee299c0 · Note
• https://github.com/discourse/discourse/releases/tag/v2026.1.5 · Note
• https://github.com/discourse/discourse/releases/tag/v2026.4.2 · Note