CVE-2026-48616 (GCVE-0-2026-48616)

Vulnerability from cvelistv5 – Published: 2026-06-16 23:08 – Updated: 2026-06-17 15:01
VLAI
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.
Severity
9.3 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-284 - Improper Access Control - Generic
Assigner
References
Impacted products
Vendor Product Version
Rocket.Chat Rocket.Chat Affected: 0 , < 8.5.1 (semver)
Affected: 0 , < 8.4.4 (semver)
Affected: 0 , < 8.3.6 (semver)
Affected: 0 , < 8.2.6 (semver)
Affected: 0 , < 8.1.6 (semver)
Affected: 0 , < 8.0.7 (semver)
Affected: 0 , < 7.13.9 (semver)
Affected: 0 , < 7.10.13 (semver)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.