CVE-2026-72856

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-14. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

Budibase versions before 3.40.0 contain an authorization/authentication bypass in the PUT /api/global/users/tenant/owner (changeTenantOwnerEmail) endpoint. On self-hosted instances (SELF_HOSTED or DISABLE_ACCOUNT_PORTAL set), the cloudRestricted middleware is a no-op and the route is protected only by a general authentication check, so any authenticated user — including a lowest-privilege BASIC app user — can reassign the tenant account-holder (top-privilege admin) email to an attacker-controlled address. The attacker can then use the public password-reset flow to take over the admin account, leading to full administrative access.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Budibase before 3.40.0 Authentication Bypass via Tenant Owner Email | Advisories | VulnCheck

https://www.vulncheck.com/advisories/budibase-before-authentication-bypass-via-tenant-owner-email
github Patch Available🟡 PoC Available

Any authenticated user (incl. BASIC) can change the account-holder/admin email · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-j82g-67x3-xcwh

Vendor Advisories for CVE-2026-72856(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 26× in last 7d / 109× 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 140 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-72856?
CVE-2026-72856 is a high vulnerability published on August 13, 2026. Budibase versions before 3.40.0 contain an authorization/authentication bypass in the PUT /api/global/users/tenant/owner (changeTenantOwnerEmail) endpoint. On self-hosted instances (SELFHOSTED or DISABLEACCOUNT_PORTAL set), the cloudRestricted middleware is a no-op and the route is protected only…
When was CVE-2026-72856 disclosed?
CVE-2026-72856 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72856 actively exploited?
CVE-2026-72856 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 73.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72856?
CVE-2026-72856 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-72856?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72856, 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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