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TI-2022-22794 Aliases CVE-2022-46150

Discourse may allow exposure of hidden tags in the subject of notification emails

Priority LOW 21CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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 discussion platform. Prior to version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches, unauthorized users may learn of the existence of hidden tags and that they have been applied to topics that they have access to. This issue is patched in version 2.8.13 of the `stable` branch and version 2.9.0.beta14 of the `beta` and `tests-passed` branches. As a workaround, use the `disable_email` site setting to disable all emails to non-staff users.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00589 48th percentileScored 2026-11-07
Fix Fixed discourse (discourse): 2.8.13, 2.9.0.beta14

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
discoursediscoursebefore 2.8.13; 2.9.0.beta0 to before 2.9.0.beta142.8.13, 2.9.0.beta14Patch availableCNA
  • discourse Vendordiscourse Affected before 2.8.13; 2.9.0.beta0 to before 2.9.0.beta14 Fixed in 2.8.13, 2.9.0.beta14 Patch available CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*before 2.8.13Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta1:*:*:*:*:*:*2.9.0 beta1Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta10:*:*:*:*:*:*2.9.0 beta10Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta11:*:*:*:*:*:*2.9.0 beta11Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta12:*:*:*:*:*:*2.9.0 beta12Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta13:*:*:*:*:*:*2.9.0 beta13Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta2:*:*:*:*:*:*2.9.0 beta2Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta3:*:*:*:*:*:*2.9.0 beta3Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:*2.9.0 beta4Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:*2.9.0 beta5Vulnerablediscourse
  • cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* Versions before 2.8.13 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:beta10:*:*:*:*:*:* Versions 2.9.0 beta10 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta11:*:*:*:*:*:* Versions 2.9.0 beta11 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta12:*:*:*:*:*:* Versions 2.9.0 beta12 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta13:*:*:*:*:*:* Versions 2.9.0 beta13 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
  • cpe:2.3:a:discourse:discourse:2.9.0:beta4:*:*:*:*:*:* Versions 2.9.0 beta4 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta5:*:*:*:*:*:* Versions 2.9.0 beta5 Vulnerable ·discourse
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:*2.9.0 beta6Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:*2.9.0 beta7Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:*:*:*:*2.9.0 beta8Vulnerablediscourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta6:*:*:*:*:*:* Versions 2.9.0 beta6 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta7:*:*:*:*:*:* Versions 2.9.0 beta7 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.9.0:beta8:*:*:*:*:*:* Versions 2.9.0 beta8 Vulnerable ·discourse

Remediation

  • Fix · CNA discourse (discourse) Fixed in 2.8.13, 2.9.0.beta14

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-46150

References

Patch 1

Advisory 1

  • 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