CVE-2026-46413

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

09/07/2026

Last modified:

14/07/2026

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

6.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:discourse:discourse::::::::	2026.1.0 (including)	2026.1.5 (excluding)
cpe:2.3:a:discourse:discourse::::::::	2026.4.0 (including)	2026.4.2 (excluding)
cpe:2.3:a:discourse:discourse::::::::	2026.5.0 (including)	2026.5.1 (excluding)
cpe:2.3:a:discourse:discourse:2026.6.0::::latest:::

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-46413

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools