Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in `can_export_entity?`. The method allowed moderators to export any entity not explicitly blocked instead of restricting to an explicit allowlist. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
CVE-2026-27153 Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoin… https://www.cve.org/CVERecord?id=CVE-2026-27153
Post summary
The text reports that prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via a CSV export endpoint in Discourse, indicating a data leakage vulnerability.
CVE-2026-27153 Discourse Chat DM Export Vulnerability via Overly Permissive Allo... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-27153 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4
Post summary
The tweet announces CVE-2026-27153 and links to a vulmon page, but provides no specific details, PoC, exploit code, or patch information.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | discourse | discourse | - | - | - |
| App | discourse | discourse | 2026.2.0 | - | - |