What is the CVSS score of CVE-2026-33422?

CVE-2026-33422 has a CVSS 3.1 base score of 3.5 (Low). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Discourse are affected by CVE-2026-33422?

CVE-2026-33422 is a low-severity vulnerability in Discourse involving information exposure (CVSS 3.5).

How to fix or mitigate CVE-2026-33422?

During next maintenance window: Apply vendor patches when convenient. Verify information disclosure controls are in place.

Discourse CVE-2026-33422

LOW

Information Exposure (CWE-200)

2026-03-20 GitHub_M

Information Disclosure Discourse

3.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

3.5 LOW

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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 20, 2026 - 23:16 vuln.today

CVE Published

Mar 20, 2026 - 23:04 nvd

LOW 3.5

DescriptionGitHub Advisory

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the ip_address of a flagged user is exposed to any user who can access the review queue, including users who should not be able to see IP addresses. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

AnalysisAI

Discourse versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain an information disclosure vulnerability where IP addresses of flagged users are exposed to any user with access to the review queue, including those without proper authorization. This allows unauthorized access to sensitive network information that should be restricted to administrators. …

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Vulnerability AssessmentAI

Risk Assessment	The CVSS score of 3.5 reflects a low-severity classification with an attack vector of Network, low complexity, and requirement for low privileges (PR:L) but user interaction (UI:R). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A community moderator with access to the review queue (granted to manage user flagging and content moderation) navigates to review flagged user posts and observes the IP address field is populated with the flagged user's network address. The moderator, lacking administrative privileges, should not have access to this information but can view it due to missing authorization controls. …
Remediation	Upgrade Discourse to version 2026.3.0-latest.1, 2026.2.1, or 2026.1.2 or later immediately, depending on your current release branch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

During next maintenance window: Apply vendor patches when convenient. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-33422 vulnerability details – vuln.today

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