CVE-2026-48616

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-17. a secondary CVSS source baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.3
EG Score
9.3(high)
EPSS
22.2%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 18, 2026

Advisory Details (2)

Auto-updated Jun 17, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic

HackerOne

https://hackerone.com/reports/3687142
github_pr

fix: imported fixes 06-11-26

Fix merged in RocketChat/Rocket.Chat PR #40889 on 2026-06-11 — awaiting tagged release

https://github.com/RocketChat/Rocket.Chat/pull/40889

Vendor Advisories for CVE-2026-48616(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 87× in last 7d / 256× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 256 total refreshes for this CVE.

  1. 2026-07-07 06:22 UTCEG score recompute
  2. 2026-07-07 06:21 UTCGHSA enrichment
  3. 2026-07-07 02:23 UTCEG score recompute
  4. 2026-07-07 02:23 UTCGHSA enrichment
  5. 2026-07-06 22:02 UTCEG score recompute
  6. 2026-07-06 22:02 UTCGHSA enrichment
  7. 2026-07-06 16:45 UTCEG score recompute
  8. 2026-07-06 16:45 UTCGHSA enrichment
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 12:30 UTCEG score recompute
  11. 2026-07-06 12:30 UTCGHSA enrichment
  12. 2026-07-06 06:32 UTCEG score recompute
  13. 2026-07-06 06:32 UTCGHSA enrichment
  14. 2026-07-06 02:27 UTCEG score recompute
  15. 2026-07-06 02:27 UTCGHSA enrichment
  16. 2026-07-06 02:23 UTCEPSS rescore
  17. 2026-07-05 22:25 UTCEG score recompute
  18. 2026-07-05 22:25 UTCGHSA enrichment
  19. 2026-07-05 18:26 UTCEG score recompute
  20. 2026-07-05 18:26 UTCGHSA enrichment
  21. 2026-07-05 14:27 UTCEG score recompute
  22. 2026-07-05 14:27 UTCGHSA enrichment
  23. 2026-07-05 10:30 UTCEG score recompute
  24. 2026-07-05 10:30 UTCGHSA enrichment
  25. 2026-07-05 06:33 UTCEG score recompute
Show 75 more
  1. 2026-07-05 06:32 UTCGHSA enrichment
  2. 2026-07-05 02:30 UTCEPSS rescore
  3. 2026-07-05 01:20 UTCEG score recompute
  4. 2026-07-05 01:20 UTCGHSA enrichment
  5. 2026-07-04 21:13 UTCEG score recompute
  6. 2026-07-04 21:12 UTCGHSA enrichment
  7. 2026-07-04 17:14 UTCEG score recompute
  8. 2026-07-04 17:14 UTCGHSA enrichment
  9. 2026-07-04 13:16 UTCEG score recompute
  10. 2026-07-04 13:16 UTCGHSA enrichment
  11. 2026-07-04 09:19 UTCEG score recompute
  12. 2026-07-04 09:19 UTCGHSA enrichment
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 05:20 UTCEG score recompute
  15. 2026-07-04 05:20 UTCGHSA enrichment
  16. 2026-07-04 01:10 UTCEG score recompute
  17. 2026-07-04 01:10 UTCGHSA enrichment
  18. 2026-07-03 21:12 UTCEG score recompute
  19. 2026-07-03 21:12 UTCGHSA enrichment
  20. 2026-07-03 17:14 UTCEG score recompute
  21. 2026-07-03 17:14 UTCGHSA enrichment
  22. 2026-07-03 13:16 UTCEG score recompute
  23. 2026-07-03 13:16 UTCGHSA enrichment
  24. 2026-07-03 07:15 UTCEG score recompute
  25. 2026-07-03 07:15 UTCGHSA enrichment
  26. 2026-07-03 03:17 UTCEG score recompute
  27. 2026-07-03 03:17 UTCGHSA enrichment
  28. 2026-07-02 23:19 UTCEG score recompute
  29. 2026-07-02 23:19 UTCGHSA enrichment
  30. 2026-07-02 19:22 UTCEG score recompute
  31. 2026-07-02 19:22 UTCGHSA enrichment
  32. 2026-07-02 15:25 UTCEG score recompute
  33. 2026-07-02 15:25 UTCGHSA enrichment
  34. 2026-07-02 11:28 UTCEG score recompute
  35. 2026-07-02 11:28 UTCGHSA enrichment
  36. 2026-07-02 07:31 UTCEG score recompute
  37. 2026-07-02 07:30 UTCGHSA enrichment
  38. 2026-07-02 03:33 UTCEG score recompute
  39. 2026-07-02 03:33 UTCGHSA enrichment
  40. 2026-07-01 23:35 UTCEG score recompute
  41. 2026-07-01 23:34 UTCGHSA enrichment
  42. 2026-07-01 19:36 UTCEG score recompute
  43. 2026-07-01 19:36 UTCGHSA enrichment
  44. 2026-07-01 15:39 UTCEG score recompute
  45. 2026-07-01 15:38 UTCGHSA enrichment
  46. 2026-07-01 15:07 UTCEPSS rescore
  47. 2026-07-01 11:41 UTCEG score recompute
  48. 2026-07-01 11:41 UTCGHSA enrichment
  49. 2026-07-01 07:44 UTCEG score recompute
  50. 2026-07-01 07:44 UTCGHSA enrichment
  51. 2026-07-01 03:47 UTCEG score recompute
  52. 2026-07-01 03:47 UTCGHSA enrichment
  53. 2026-06-30 23:50 UTCEG score recompute
  54. 2026-06-30 23:50 UTCGHSA enrichment
  55. 2026-06-30 23:22 UTCEPSS rescore
  56. 2026-06-30 19:39 UTCEG score recompute
  57. 2026-06-30 15:42 UTCEG score recompute
  58. 2026-06-30 15:42 UTCGHSA enrichment
  59. 2026-06-30 11:44 UTCEG score recompute
  60. 2026-06-30 11:44 UTCGHSA enrichment
  61. 2026-06-30 06:59 UTCEG score recompute
  62. 2026-06-30 06:58 UTCGHSA enrichment
  63. 2026-06-30 02:56 UTCEG score recompute
  64. 2026-06-30 02:56 UTCGHSA enrichment
  65. 2026-06-29 22:56 UTCEG score recompute
  66. 2026-06-29 22:56 UTCGHSA enrichment
  67. 2026-06-29 18:59 UTCEG score recompute
  68. 2026-06-29 18:59 UTCGHSA enrichment
  69. 2026-06-29 15:02 UTCEG score recompute
  70. 2026-06-29 15:02 UTCGHSA enrichment
  71. 2026-06-29 14:06 UTCEPSS rescore
  72. 2026-06-29 14:06 UTCEPSS rescore
  73. 2026-06-29 11:05 UTCEG score recompute
  74. 2026-06-29 11:04 UTCGHSA enrichment
  75. 2026-06-29 07:07 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48616?
CVE-2026-48616 is a critical vulnerability published on June 17, 2026. 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 rcroomtype=l with rcrid+rctoken, but the authorization path does not verify…
When was CVE-2026-48616 disclosed?
CVE-2026-48616 was first published in the National Vulnerability Database on June 17, 2026, with the most recent update on June 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48616 actively exploited?
CVE-2026-48616 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48616?
CVE-2026-48616 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-48616?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48616, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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