CVE-2026-72726
Received Received - Intake

Information Disclosure in Discourse AI Bot

Publication date: 2026-08-10

Last updated on: 2026-08-10

Assigner: GitHub, Inc.

Description
Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, an authenticated user could eavesdrop on private AI bot conversations through the AI bot reply stream. The issue is fixed in 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

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Meta Information

Published
2026-08-10
Last Modified
2026-08-10
Generated
2026-08-10
AI Q&A
2026-08-10
EPSS Evaluated
N/A
NVD
CVE-2026-72726
EUVD
EUVD-2026-55665

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
discourse discourse to 2026.1.6 (exc)
discourse discourse to 2026.5.2 (exc)
discourse discourse to 2026.6.1 (exc)
discourse discourse to 2026.7.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

This vulnerability in Discourse allows an authenticated user to eavesdrop on private AI bot conversations by accessing the AI bot reply stream. It affects versions before 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

Impact Analysis

An attacker could intercept sensitive information shared in private AI bot conversations, leading to data leaks or privacy breaches. This could expose confidential discussions, user data, or internal communications.

Compliance Impact

This vulnerability could violate GDPR by exposing personal data without consent and HIPAA by leaking protected health information. Organizations may face fines or legal penalties for non-compliance.

Mitigation Strategies

Update Discourse to version 2026.1.6, 2026.5.2, 2026.6.1, or 2026.7.0 or later to fix the vulnerability.

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