TI-2022-08617 Aliases CVE-2022-24804

Private group name exposure in discourse

LOW 32CWE-200Published 2022-04-11 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

Discourse is an open source platform for community discussion. In stable versions prior to 2.8.3 and beta versions prior 2.9.0.beta4 erroneously expose groups. When a group with restricted visibility has been used to set the permissions of a category, the name of the group is leaked to any user that is able to see the category. To workaround the problem, a site administrator can remove groups with restricted visibility from any category's permissions setting.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00865 58th percentileScored 2026-11-07

Fix Fixed discourse (discourse): 2.8.3, 2.9.0.beta4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
discourse	discourse	before 2.8.3; 2.9.0.beta1 to before 2.9.0.beta4	2.8.3, 2.9.0.beta4	Patch available	CNA

discourse Vendordiscourse Affected before 2.8.3; 2.9.0.beta1 to before 2.9.0.beta4 Fixed in 2.8.3, 2.9.0.beta4 Patch available CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:discourse:discourse::::::::	before 2.8.3	Vulnerable	discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta1::::::	2.9.0 beta1	Vulnerable	discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta2::::::	2.9.0 beta2	Vulnerable	discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta3::::::	2.9.0 beta3	Vulnerable	discourse

cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* Versions before 2.8.3 Vulnerable ·discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:* Versions 2.9.0 beta1 Vulnerable ·discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:*:*:*:* Versions 2.9.0 beta2 Vulnerable ·discourse
cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:*:*:*:* Versions 2.9.0 beta3 Vulnerable ·discourse

Remediation

Fix · CNA discourse (discourse) Fixed in 2.8.3, 2.9.0.beta4

Timeline

2026-10-02 Threatist record created from CVE-2022-24804

References

Patch 1

https://github.com/discourse/discourse/commit/0f7b9878ff3207ce20970f0517604793920bb3d2

Advisory 1

https://github.com/discourse/discourse/security/advisories/GHSA-v4c9-6m9g-37ff

TI-2021-19656 Denial of Service in discourse CVSS 3.1MEDIUM 6.8
TI-2024-36150 Potential Backup file leaked via Nginx in Discourse CVSS 3.1HIGH 7.5
TI-2021-18002 RCE via malicious SNS subscription payload CVSS 3.1CRITICAL 10.0
TI-2026-24651 Discourse: Open redirect via `sso_destination_url` cookie in `enter` CVSS 4.0MEDIUM 5.1
TI-2026-22278 Discourse leaks private topic title and post excerpt via user action API endpoint CVSS 4.0HIGH 8.7
TI-2023-24152 Unauthenticated access to new private chat messages in Discourse CVSS 3.1HIGH 7.5

See all 262 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences