CVE-2026-73409

MEDIUMPre-NVD 5.15.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (22nd 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
Trending — 3 sources updated this weekElevated
5.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through /api/datasources/verify and distinguish readable existing files from missing files by comparing the driver error, exposing a filesystem existence and readability oracle on the shared server. This issue is fixed in version 3.40.1.

CVSS v3
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
54
EG Risk 54/100CISA 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
Severity51% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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

July 24, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github_pr, github_commit, github_release, github.
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 e58aa31e1827 (Budibase/budibase)

Patch available: Budibase/budibase 3.40.1 (contains commit e58aa31e1827)

https://github.com/Budibase/budibase/commit/e58aa31e18272f6a1a8aeb525b7eef0b01b1dd43
github_pr Patch Available

[VULN-118] Stop forwarding MongoDB TLS file paths on Cloud

Patch available: Budibase/budibase 3.40.1 (PR #19244 merged 2026-07-22)

https://github.com/Budibase/budibase/pull/19244
githubMentions a patch (unverified)🟡 PoC Available

Server Filesystem Existence/Read Oracle via Builder-Controlled MongoDB tlsCertificateKeyFile · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6

Vendor Advisories for CVE-2026-73409(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npm@budibase/server—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

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(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 50× 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 126 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 15:18 UTCEPSS rescore
  6. 2026-10-05 17:43 UTCEPSS rescore
  7. 2026-10-04 23:22 UTCEPSS rescore
  8. 2026-10-04 07:41 UTCEG score recompute
  9. 2026-10-04 07:41 UTCGHSA enrichment
  10. 2026-10-03 14:26 UTCEPSS rescore
  11. 2026-10-02 19:43 UTCEG score recompute
  12. 2026-10-02 19:43 UTCGHSA enrichment
  13. 2026-10-01 19:50 UTCEPSS rescore
  14. 2026-10-01 04:32 UTCEG score recompute
  15. 2026-10-01 04:32 UTCGHSA enrichment
  16. 2026-09-29 15:24 UTCEPSS rescore
  17. 2026-09-28 13:52 UTCEPSS rescore
  18. 2026-09-28 04:26 UTCEG score recompute
  19. 2026-09-28 04:26 UTCGHSA enrichment
  20. 2026-09-27 13:48 UTCEPSS rescore
  21. 2026-09-26 15:59 UTCEPSS rescore
  22. 2026-09-25 10:00 UTCEG score recompute
  23. 2026-09-25 10:00 UTCGHSA enrichment
  24. 2026-09-24 00:55 UTCEG score recompute
  25. 2026-09-24 00:55 UTCGHSA enrichment
Show 75 more
  1. 2026-09-23 17:54 UTCEPSS rescore
  2. 2026-09-22 22:09 UTCEG score recompute
  3. 2026-09-22 22:09 UTCGHSA enrichment
  4. 2026-09-21 21:09 UTCEPSS rescore
  5. 2026-09-20 20:16 UTCEPSS rescore
  6. 2026-09-20 01:39 UTCEG score recompute
  7. 2026-09-20 01:39 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 02:56 UTCEG score recompute
  10. 2026-09-18 02:56 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 11:58 UTCEG score recompute
  13. 2026-09-16 11:58 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 09:34 UTCEG score recompute
  16. 2026-09-15 09:34 UTCGHSA enrichment
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-13 21:46 UTCEG score recompute
  19. 2026-09-13 21:46 UTCGHSA enrichment
  20. 2026-09-12 17:41 UTCEG score recompute
  21. 2026-09-12 17:41 UTCGHSA enrichment
  22. 2026-09-12 15:02 UTCEPSS rescore
  23. 2026-09-11 16:35 UTCEG score recompute
  24. 2026-09-11 16:35 UTCGHSA enrichment
  25. 2026-09-11 14:53 UTCEPSS rescore
  26. 2026-09-10 13:34 UTCEG score recompute
  27. 2026-09-10 13:34 UTCGHSA enrichment
  28. 2026-09-10 09:35 UTCEPSS rescore
  29. 2026-09-08 22:01 UTCEPSS rescore
  30. 2026-09-08 21:25 UTCGHSA enrichment
  31. 2026-09-07 21:23 UTCEG score recompute
  32. 2026-09-07 21:23 UTCGHSA enrichment
  33. 2026-09-06 13:48 UTCEPSS rescore
  34. 2026-09-05 19:22 UTCEG score recompute
  35. 2026-09-05 19:22 UTCGHSA enrichment
  36. 2026-09-04 12:47 UTCEG score recompute
  37. 2026-09-04 12:47 UTCGHSA enrichment
  38. 2026-09-04 05:07 UTCEPSS rescore
  39. 2026-09-02 14:12 UTCEPSS rescore
  40. 2026-09-01 23:15 UTCEG score recompute
  41. 2026-09-01 23:15 UTCGHSA enrichment
  42. 2026-09-01 13:54 UTCEPSS rescore
  43. 2026-09-01 04:40 UTCEPSS rescore
  44. 2026-09-01 04:40 UTCEPSS rescore
  45. 2026-08-31 01:13 UTCEG score recompute
  46. 2026-08-31 01:13 UTCGHSA enrichment
  47. 2026-08-30 19:18 UTCEPSS rescore
  48. 2026-08-30 19:17 UTCEPSS rescore
  49. 2026-08-30 01:22 UTCEPSS rescore
  50. 2026-08-30 00:14 UTCEG score recompute
  51. 2026-08-30 00:14 UTCGHSA enrichment
  52. 2026-08-28 21:42 UTCEPSS rescore
  53. 2026-08-27 11:43 UTCEG score recompute
  54. 2026-08-27 11:43 UTCGHSA enrichment
  55. 2026-08-26 14:47 UTCEPSS rescore
  56. 2026-08-26 10:44 UTCEG score recompute
  57. 2026-08-26 10:44 UTCGHSA enrichment
  58. 2026-08-25 13:49 UTCEPSS rescore
  59. 2026-08-25 09:45 UTCEG score recompute
  60. 2026-08-25 09:45 UTCGHSA enrichment
  61. 2026-08-24 08:45 UTCGHSA enrichment
  62. 2026-08-23 07:32 UTCEG score recompute
  63. 2026-08-23 07:32 UTCGHSA enrichment
  64. 2026-08-23 00:19 UTCEPSS rescore
  65. 2026-08-22 06:33 UTCEG score recompute
  66. 2026-08-22 06:33 UTCGHSA enrichment
  67. 2026-08-21 23:49 UTCEPSS rescore
  68. 2026-08-21 05:34 UTCEG score recompute
  69. 2026-08-21 05:34 UTCGHSA enrichment
  70. 2026-08-20 22:56 UTCEPSS rescore
  71. 2026-08-20 04:35 UTCEG score recompute
  72. 2026-08-20 04:35 UTCGHSA enrichment
  73. 2026-08-19 17:04 UTCEPSS rescore
  74. 2026-08-19 03:35 UTCEG score recompute
  75. 2026-08-19 03:35 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-73409?
CVE-2026-73409 is a medium vulnerability published on July 24, 2026. Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through /api/datasources/verify and…
When was CVE-2026-73409 disclosed?
CVE-2026-73409 was first published on July 24, 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-2026-73409 actively exploited?
CVE-2026-73409 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73409?
CVE-2026-73409 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73409?
A fix for CVE-2026-73409 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73409 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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