CVE-2026-73407

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd percentile of EPSS-scored CVEs). 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, secondary
Elevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.0Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Budibase is an open-source low-code platform. Prior to 3.40.1, RestIntegration._req in packages/server/src/integrations/rest.ts attached credentials from getAuthHeaders and defaultHeaders without requiring the final request destination to match the datasource origin. An unauthenticated caller of a PUBLIC POST /api/v2/queries/:queryId query could supply an absolute or parameterized path to an attacker-controlled host and receive the stored bearer, basic, or static-header credentials. This issue is fixed in version 3.40.1.

CVSS v3
9.0
EG Score
9.0CRITICALmedium confidence
EG Risk
57
EG Risk 57/100CISA SSVC

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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 12, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github, github_pr, github_commit.
github_release Patch Available

3.40.1

Patch available: Budibase/budibase 3.40.1

https://github.com/Budibase/budibase/releases/tag/3.40.1
github_commit Patch Available

commit 8b1bca71501b (Budibase/budibase)

Patch available: Budibase/budibase 3.40.1 (contains commit 8b1bca71501b)

https://github.com/Budibase/budibase/commit/8b1bca71501b11c68310351ef4f2c3028b2d5f08
github_pr Patch Available

[GHSA-mqhr-6j6h-74p5] Enforce same-origin check for REST datasource requests

Patch available: Budibase/budibase 3.40.1 (PR #19239 merged 2026-07-22)

https://github.com/Budibase/budibase/pull/19239
githubMentions a patch (unverified)🟡 PoC Available

Unauthenticated REST Datasource Credential Theft via Cross-Origin Auth Leak (bypass of GHSA-3gp5) · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-mqhr-6j6h-74p5

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
@budibase/server—
  • every version through 3.38.1: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 46× 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 105 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-73407?
CVE-2026-73407 is a critical vulnerability published on August 12, 2026. Budibase is an open-source low-code platform. Prior to 3.40.1, RestIntegration._req in packages/server/src/integrations/rest.ts attached credentials from getAuthHeaders and defaultHeaders without requiring the final request destination to match the datasource origin. An unauthenticated caller of a…
When was CVE-2026-73407 disclosed?
CVE-2026-73407 was first published on August 12, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73407 actively exploited?
CVE-2026-73407 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73407?
CVE-2026-73407 has a CVSS base score of 9.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73407?
A fix for CVE-2026-73407 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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