CVE-2026-48616
Last modified
CVE-2026-48616 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. Rocket.Chat versions <8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, 7.10.13 has an access control vulnerability in Livechat files. Protected file downloads at /file-upload/:fileId/:name authorize livechat access using rc_room_type=l with rc_rid+rc_token, but the authorization path does not verify that rc_rid matches the requested file's rid. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
Rocket.Chat versions <8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, 7.13.9, 7.10.13 has an access control vulnerability in Livechat files. Protected file downloads at /file-upload/:fileId/:name authorize livechat access using rc_room_type=l with rc_rid+rc_token, but the authorization path does not verify that rc_rid matches the requested file's rid. Furthermore, :fileId is predictable via sequential MongoDB IDs, and :name can be anything, allowing unauthenticated discovery of all uploaded files.
Metrics
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rocket.Chat | Rocket.Chat | < 7.10.13 |
| Rocket.Chat | Rocket.Chat | >= 7.13.0, < 7.13.9 |
| Rocket.Chat | Rocket.Chat | >= 8.0.0, < 8.0.7 |
| Rocket.Chat | Rocket.Chat | >= 8.1.0, < 8.1.6 |
| Rocket.Chat | Rocket.Chat | >= 8.2.0, < 8.2.6 |
| Rocket.Chat | Rocket.Chat | >= 8.3.0, < 8.3.6 |
| Rocket.Chat | Rocket.Chat | >= 8.4.0, < 8.4.4 |
| Rocket.Chat | Rocket.Chat | >= 8.5.0, < 8.5.1 |
References
- https://github.com/RocketChat/Rocket.Chat/pull/40889Issue Tracking, Patch, Third Party Advisory
- https://hackerone.com/reports/3687142Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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