CVE-2026-46426

HIGHNVD 7.67.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.6 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 93% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.6Exploit: NoneExposed: 0

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

Budibase is an open-source low-code platform. Prior to 3.38.2, the file upload endpoint POST /api/attachments/process does not enforce active-content restrictions for authenticated users. The checks for dangerous file extensions are conditionally wrapped inside if (isPublicUser) or if (isPublicUser || !env.SELF_HOSTED), meaning any authenticated builder can upload executable web content — SVG files with inline tags, HTML pages with JavaScript, .js modules — which are then stored in the object store (MinIO/S3) with their correct MIME types. When the resulting signed URL is opened by any app user, the browser executes the payload. Impact is persistent stored XSS over all application end users. This vulnerability is fixed in 3.38.2.

CVSS v3
7.6
EG Score
7.6(medium)
EPSS
7.2%
KEV
Not listed

Published

May 19, 2026

Last Modified

May 27, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github.
github Patch Available🟡 PoC Available

Unrestricted Upload of File with Dangerous Type · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-82rc-gxrg-v4gf
github_release Patch Available

3.38.2

Patch available: Budibase/budibase 3.38.2

https://github.com/Budibase/budibase/releases/tag/3.38.2

Vendor Advisories for CVE-2026-46426(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—3.38.2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 63× 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 103 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-46426?
CVE-2026-46426 is a high vulnerability published on May 19, 2026. Budibase is an open-source low-code platform. Prior to 3.38.2, the file upload endpoint POST /api/attachments/process does not enforce active-content restrictions for authenticated users. The checks for dangerous file extensions are conditionally wrapped inside if (isPublicUser) or if (isPublicUser…
When was CVE-2026-46426 disclosed?
CVE-2026-46426 was first published in the National Vulnerability Database on May 19, 2026, with the most recent update on May 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46426 actively exploited?
CVE-2026-46426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46426?
CVE-2026-46426 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-46426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46426, 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-2026-46426

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