CVE-2026-48616

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM 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
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: None knownExposed: 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(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 18, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: github_pr.
generic

HackerOne

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

fix: imported fixes 06-11-26

Patch available: RocketChat/Rocket.Chat 8.6.0 (PR #40889 merged 2026-06-11)

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 7× in last 7d / 59× 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 426 total refreshes for this CVE.

  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-14 07:09 UTCGHSA enrichment
  3. 2026-09-14 03:12 UTCEG score recompute
  4. 2026-09-14 03:12 UTCGHSA enrichment
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-08 22:01 UTCEPSS rescore
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-08-31 02:30 UTCGHSA enrichment
  16. 2026-08-30 22:27 UTCEG score recompute
  17. 2026-08-30 22:27 UTCGHSA enrichment
  18. 2026-08-30 19:17 UTCEPSS rescore
  19. 2026-08-30 01:22 UTCEPSS rescore
  20. 2026-08-28 21:41 UTCEPSS rescore
  21. 2026-08-27 14:25 UTCEPSS rescore
  22. 2026-08-26 14:46 UTCEPSS rescore
  23. 2026-08-25 13:49 UTCEPSS rescore
  24. 2026-08-25 06:54 UTCGHSA enrichment
  25. 2026-08-25 02:25 UTCGHSA enrichment
Show 75 more
  1. 2026-08-24 22:28 UTCEG score recompute
  2. 2026-08-24 22:28 UTCGHSA enrichment
  3. 2026-08-24 07:06 UTCGHSA enrichment
  4. 2026-08-24 00:28 UTCGHSA enrichment
  5. 2026-08-23 20:30 UTCGHSA enrichment
  6. 2026-08-23 16:33 UTCGHSA enrichment
  7. 2026-08-23 12:36 UTCGHSA enrichment
  8. 2026-08-23 08:38 UTCGHSA enrichment
  9. 2026-08-23 04:33 UTCEG score recompute
  10. 2026-08-23 04:33 UTCGHSA enrichment
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 22:31 UTCGHSA enrichment
  14. 2026-08-21 18:12 UTCGHSA enrichment
  15. 2026-08-21 14:15 UTCGHSA enrichment
  16. 2026-08-21 09:41 UTCGHSA enrichment
  17. 2026-08-21 05:26 UTCGHSA enrichment
  18. 2026-08-21 00:21 UTCEG score recompute
  19. 2026-08-21 00:21 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 20:23 UTCGHSA enrichment
  22. 2026-08-20 16:25 UTCGHSA enrichment
  23. 2026-08-20 12:27 UTCGHSA enrichment
  24. 2026-08-20 08:17 UTCEG score recompute
  25. 2026-08-20 08:17 UTCGHSA enrichment
  26. 2026-08-19 17:04 UTCEPSS rescore
  27. 2026-08-19 12:50 UTCGHSA enrichment
  28. 2026-08-19 08:13 UTCEG score recompute
  29. 2026-08-19 08:13 UTCGHSA enrichment
  30. 2026-08-18 13:48 UTCEPSS rescore
  31. 2026-08-17 14:07 UTCEG score recompute
  32. 2026-08-17 14:07 UTCGHSA enrichment
  33. 2026-08-17 13:47 UTCEPSS rescore
  34. 2026-08-17 10:10 UTCGHSA enrichment
  35. 2026-08-17 06:13 UTCGHSA enrichment
  36. 2026-08-17 01:09 UTCGHSA enrichment
  37. 2026-08-16 21:12 UTCEG score recompute
  38. 2026-08-16 21:12 UTCGHSA enrichment
  39. 2026-08-16 14:56 UTCEPSS rescore
  40. 2026-08-16 13:44 UTCGHSA enrichment
  41. 2026-08-16 09:45 UTCGHSA enrichment
  42. 2026-08-16 05:48 UTCEG score recompute
  43. 2026-08-16 05:48 UTCGHSA enrichment
  44. 2026-08-16 02:14 UTCEPSS rescore
  45. 2026-08-16 01:52 UTCGHSA enrichment
  46. 2026-08-15 21:55 UTCGHSA enrichment
  47. 2026-08-15 17:49 UTCGHSA enrichment
  48. 2026-08-15 13:52 UTCGHSA enrichment
  49. 2026-08-15 09:32 UTCGHSA enrichment
  50. 2026-08-15 02:52 UTCEG score recompute
  51. 2026-08-15 02:52 UTCGHSA enrichment
  52. 2026-08-15 01:30 UTCEPSS rescore
  53. 2026-08-14 22:55 UTCGHSA enrichment
  54. 2026-08-14 18:58 UTCGHSA enrichment
  55. 2026-08-14 15:00 UTCGHSA enrichment
  56. 2026-08-14 11:03 UTCGHSA enrichment
  57. 2026-08-14 07:06 UTCGHSA enrichment
  58. 2026-08-14 03:09 UTCGHSA enrichment
  59. 2026-08-13 23:12 UTCEG score recompute
  60. 2026-08-13 23:12 UTCGHSA enrichment
  61. 2026-08-13 22:00 UTCEPSS rescore
  62. 2026-08-13 19:11 UTCGHSA enrichment
  63. 2026-08-13 14:18 UTCGHSA enrichment
  64. 2026-08-13 10:21 UTCGHSA enrichment
  65. 2026-08-13 06:24 UTCGHSA enrichment
  66. 2026-08-13 02:27 UTCGHSA enrichment
  67. 2026-08-12 22:30 UTCGHSA enrichment
  68. 2026-08-12 18:33 UTCGHSA enrichment
  69. 2026-08-12 14:36 UTCEG score recompute
  70. 2026-08-12 14:36 UTCGHSA enrichment
  71. 2026-08-12 13:51 UTCEPSS rescore
  72. 2026-08-12 10:27 UTCGHSA enrichment
  73. 2026-08-12 06:29 UTCGHSA enrichment
  74. 2026-08-12 02:30 UTCGHSA enrichment
  75. 2026-08-11 22:33 UTCGHSA enrichment

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 0% probability of exploitation in the next 30 days, which ranks it in the top 73.7% of all scored CVEs.
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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