CVE-2026-72859

HIGHPre-NVD 7.77.7—
EchelonGraph scoreMEDIUM confidence

Score 7.7 from GitHub Security Advisory (severity: HIGH) published 2026-08-14. a secondary CVSS source baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: Elevated riskExposed: 0

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

Budibase versions 3.39.4 before 3.40.0 contain an authorization regression in the S3 attachment upload endpoint that allows BASIC users to obtain S3 PutObject presigned URLs by sending POST requests to the attachments endpoint. The route was changed from a BUILDER permission check to a TABLE/WRITE check, which BASIC users hold by default. Attackers can specify arbitrary S3 buckets in the request body to generate presigned URLs for writing to any bucket accessible by the stored IAM credentials, enabling unauthorized file uploads.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

August 14, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
Patch available. Sources: github.
generic

Budibase 3.39.4 before 3.40.0 Authorization Regression via S3 Presigned URL | Advisories | VulnCheck

https://www.vulncheck.com/advisories/budibase-before-authorization-regression-via-s3-presigned-url
github Patch Available

S3 presigned URL endpoint authorization regression in v3.39.4 allows BASIC users to obtain S3 PutObject presigned URLs · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-xcx6-4f2g-hhgx

Vendor Advisories for CVE-2026-72859(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@budibase/server———

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× 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 139 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72859?
CVE-2026-72859 is a high vulnerability published on August 14, 2026. Budibase versions 3.39.4 before 3.40.0 contain an authorization regression in the S3 attachment upload endpoint that allows BASIC users to obtain S3 PutObject presigned URLs by sending POST requests to the attachments endpoint. The route was changed from a BUILDER permission check to a TABLE/WRITE…
When was CVE-2026-72859 disclosed?
CVE-2026-72859 was first published in the National Vulnerability Database on August 14, 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-2026-72859 actively exploited?
CVE-2026-72859 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 92.0% of all scored CVEs.
What is the CVSS score of CVE-2026-72859?
CVE-2026-72859 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-72859?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72859, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-72859

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