BIT-discourse-2026-72724

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Import Source

https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-72724.json

JSON Data

https://api.osv.dev/v1/vulns/BIT-discourse-2026-72724

Aliases

CVE-2026-72724
GHSA-8g98-fvfc-9w48

Published

2026-08-17T05:44:26Z

Modified

2026-08-17T08:10:41Z

Summary

Discourse: Private Chat Threat Message Disclosure via Chat Onebox Channel/Threat ID Mismatch

Details

Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, plugins/chat/lib/chat/onebox_handler.rb resolves Chat::Thread by route thread_id independently of the route channel_id before checking whether the user can preview the selected chat channel. An authenticated user can pair a public channel ID with a private thread ID in a /onebox.json request and obtain private thread message content. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.

Database specific

{
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}

References

Affected packages

Bitnami / discourse

Package

Name: discourse
Purl: pkg:bitnami/discourse

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2026.1.6

Introduced

2026.5.0

Fixed

2026.5.2

Introduced

2026.6.0

Fixed

2026.6.1

Database specific

source

"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-72724.json"