CVE-2026-48616 json
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.
published 2026-06-16 4 mo ago modified 2026-10-24 15 d ago also EUVD-2026-37514
- cvss
- 9.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Rocket.Chat Rocket.Chat 7.10.13, 7.13.9, 8.0.7, 8.1.6, 8.2.6, 8.3.6, 8.4.4, 8.5.1
- github.com/RocketChat/Rocket.Chat#40889 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 9.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N |
Affected products
- Rocket.Chat Rocket.Chat
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/RocketChat/Rocket.Chat/pull/40889
issue-tracking, patch, third-party-advisory
-
hackerone.com
/reports/3687142
third-party-advisory
Sources
- CVE List CVE-2026-48616
- NVD CVE-2026-48616
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.