CVE-2026-48929

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.5Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, causing the authorization check to be skipped. Execution falls through to FileUpload.getStore('Uploads').deleteById(fileID), which removes the file from storage and database unconditionally. File IDs are discoverable from public channel message payloads and download URLs.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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 (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
EPSS PROB
0.9%
EPSS %ILE
57th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 17, 2026

Last Modified

June 18, 2026

Advisory Details (2)

Auto-updated Jun 18, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
Web page

HackerOne

https://hackerone.com/reports/3611837
GitHub pull request

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-2026-48929(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 12× in last 7d / 28× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 249 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 149 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  4. 2026-10-12 16:00 UTCEG score recompute
  5. 2026-10-11 19:43 UTCEG score recompute
  6. 2026-10-11 16:58 UTCEG score recompute
  7. 2026-10-11 14:22 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  11. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  16. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  17. 2026-10-03 06:09 UTCOSV refresh
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  23. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  24. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  25. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
Show 75 more
  1. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  2. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  3. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  4. 2026-09-14 03:11 UTCEG score recompute
  5. 2026-09-14 03:11 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  6. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  9. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  10. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  14. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  15. 2026-08-30 22:27 UTCEG score recompute
  16. 2026-08-30 22:27 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  18. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  21. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  22. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-08-24 22:28 UTCEG score recompute
  24. 2026-08-24 22:28 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-08-24 07:06 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  26. 2026-08-23 17:09 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-08-23 04:33 UTCEG score recompute
  28. 2026-08-23 04:33 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  29. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  30. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  31. 2026-08-21 22:31 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-08-21 09:40 UTCEG score recompute
  33. 2026-08-21 09:40 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  35. 2026-08-20 20:55 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-08-20 08:17 UTCEG score recompute
  37. 2026-08-20 08:17 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  39. 2026-08-19 08:13 UTCEG score recompute
  40. 2026-08-19 08:13 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  42. 2026-08-17 14:54 UTCEG score recompute
  43. 2026-08-17 14:54 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  45. 2026-08-17 02:18 UTCEG score recompute
  46. 2026-08-17 02:18 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  48. 2026-08-16 13:41 UTCEG score recompute
  49. 2026-08-16 13:41 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  51. 2026-08-16 01:01 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-08-15 12:24 UTCEG score recompute
  53. 2026-08-15 12:24 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  55. 2026-08-14 23:47 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-08-14 11:10 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-08-13 22:33 UTCEG score recompute
  58. 2026-08-13 22:33 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  60. 2026-08-13 09:56 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-08-12 21:20 UTCEG score recompute
  62. 2026-08-12 21:20 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  64. 2026-08-12 08:43 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-08-11 20:06 UTCEG score recompute
  66. 2026-08-11 20:06 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-08-11 07:29 UTCEG score recompute
  68. 2026-08-11 07:29 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  70. 2026-08-10 18:53 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-08-10 02:58 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-08-09 14:22 UTCEG score recompute
  73. 2026-08-09 14:21 UTCGHSA enrichmentGHSA-f55j-xv27-8cwj · GitHub severity HIGH · GitHub CVSS 7.5
  74. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  75. 2026-08-09 01:45 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-48929?
CVE-2026-48929 is a high-severity vulnerability; its CVE record was published on June 17, 2026. Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP…
When was the CVE record for CVE-2026-48929 published?
The CVE record for CVE-2026-48929 was published on June 17, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 18, 2026; the record at its source may have been updated since.
Is CVE-2026-48929 actively exploited?
CVE-2026-48929 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-48929?
CVE-2026-48929 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-48929?
An upstream fix for CVE-2026-48929 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-48929 are linked in the Vendor Advisories panel on this page.

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