CVE-2026-48616

criticalpriority · track · 0EPSS 0.003 · 26 %ileEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.33% (26th) EPSS
CVSS 9.3 · critical
Is it mine?
16 products
Check your exposure
Who says so?
3 sources
cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.3
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.09.3criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:Nsecondary · ENISA EU
v3.09.3criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:Nsecondary · support@hackerone.comexploitability 3.9 · impact 4.7
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284US
04

affected products (16)

Products and version ranges known to be affected.

05

also known as (3)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdNVDCVE.orgMITRE
published 2026-06-17modified 2026-10-24
07

references (7)

External citations — patches, advisories, analysis.

scry

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