CVE-2026-72726

Discourse: Unauthorized eavesdropping on private AI bot conversations.

Medium6.5EPSS 0.45%

Published: 10 Aug 2026
Updated: 10 Aug 2026
Reserved: 10 Aug 2026
Assigned by: GitHub_M

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.

Timeline

2026
10 Aug 2026
10 Aug 2026
ID reserved
By GitHub_M
10 Aug 2026
10 Aug 2026
Published

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-72726, by who scored it
Scored by	CVSS	Score	Vector
GitHub_MCNA (assigner)	3.1	Medium6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Deferred	3.1	Medium6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS (exploitation in 30 days): 0.45% · top 60% of all CVEs (7 Nov 2026)
CISA SSVC: Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.

Weakness

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (opens in a new tab)All about CWE-200 and its CVEs

Affected products

discourse · discourse
- affected < 2026.1.6
- affected >= 2026.5.0, < 2026.5.2
- affected >= 2026.6.0, < 2026.6.1

References (5)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

[![CVE-2026-72726](https://trackcve.app/badge/CVE-2026-72726.svg)](https://trackcve.app/cve/CVE-2026-72726)

Record last updated 10 Aug 2026, 16:57 UTC.