CVE-2026-54351

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.6 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 63% 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
Trending — 3 sources updated this weekElevated
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.6Exploit: 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 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger() allows an attacker to overwrite the internal appId property by including it in the webhook POST body. When the automation is processed asynchronously (the default path for webhooks without a collect step), the worker executes the attacker-defined automation in the context of the victim's workspace, granting full read/write access to the victim's database. This vulnerability is fixed in 3.39.9.

CVSS v3
9.6
EG Score
9.6(medium)
EPSS
36.8%
KEV
Not listed

Published

June 22, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Mass Assignment in Webhook Trigger Allows Cross-Workspace Automation Execution via appId Override · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-rgvg-3wpc-h44p

Vendor Advisories for CVE-2026-54351(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—3.39.9—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 69× 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.

  1. 2026-07-07 04:30 UTCEG score recompute
  2. 2026-07-07 00:28 UTCEG score recompute
  3. 2026-07-06 20:28 UTCEG score recompute
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 16:16 UTCEG score recompute
  7. 2026-07-06 12:13 UTCEG score recompute
  8. 2026-07-06 08:08 UTCEG score recompute
  9. 2026-07-06 03:48 UTCEG score recompute
  10. 2026-07-06 02:23 UTCEPSS rescore
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  12. 2026-07-05 23:48 UTCEG score recompute
  13. 2026-07-05 19:48 UTCEG score recompute
  14. 2026-07-05 15:48 UTCEG score recompute
  15. 2026-07-05 11:47 UTCEG score recompute
  16. 2026-07-05 07:46 UTCEG score recompute
  17. 2026-07-05 03:45 UTCEG score recompute
  18. 2026-07-05 02:31 UTCEPSS rescore
  19. 2026-07-05 02:30 UTCEPSS rescore
  20. 2026-07-04 23:36 UTCEG score recompute
  21. 2026-07-04 19:35 UTCEG score recompute
  22. 2026-07-04 15:34 UTCEG score recompute
  23. 2026-07-04 11:33 UTCEG score recompute
  24. 2026-07-04 07:31 UTCEG score recompute
  25. 2026-07-04 06:31 UTCEPSS rescore
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  1. 2026-07-04 06:31 UTCEPSS rescore
  2. 2026-07-04 03:27 UTCEG score recompute
  3. 2026-07-03 23:26 UTCEG score recompute
  4. 2026-07-03 19:26 UTCEG score recompute
  5. 2026-07-03 15:25 UTCEG score recompute
  6. 2026-07-03 11:25 UTCEG score recompute
  7. 2026-07-03 07:15 UTCEG score recompute
  8. 2026-07-03 03:15 UTCEG score recompute
  9. 2026-07-02 23:14 UTCEG score recompute
  10. 2026-07-02 19:14 UTCEG score recompute
  11. 2026-07-02 15:14 UTCEG score recompute
  12. 2026-07-02 11:13 UTCEG score recompute
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  14. 2026-07-02 03:08 UTCEG score recompute
  15. 2026-07-01 23:07 UTCEG score recompute
  16. 2026-07-01 19:07 UTCEG score recompute
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-07-01 15:05 UTCEG score recompute
  19. 2026-07-01 11:03 UTCEG score recompute
  20. 2026-07-01 07:03 UTCEG score recompute
  21. 2026-07-01 03:01 UTCEG score recompute▲ 1.40
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 20:33 UTCNVD updateCVSS v3 → 9.6 · severity → CRITICAL
  24. 2026-06-30 16:12 UTCEG score recompute
  25. 2026-06-30 05:22 UTCEG score recompute
  26. 2026-06-29 18:33 UTCEG score recompute
  27. 2026-06-29 07:44 UTCEG score recompute
  28. 2026-06-28 20:52 UTCEG score recompute
  29. 2026-06-28 14:07 UTCEPSS rescore
  30. 2026-06-28 10:03 UTCEG score recompute
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-28 04:56 UTCEPSS rescore
  33. 2026-06-27 23:14 UTCEG score recompute
  34. 2026-06-27 12:25 UTCEG score recompute
  35. 2026-06-27 01:36 UTCEG score recompute
  36. 2026-06-26 14:47 UTCEG score recompute
  37. 2026-06-26 03:52 UTCEG score recompute
  38. 2026-06-25 17:02 UTCEG score recompute
  39. 2026-06-25 06:12 UTCEG score recompute
  40. 2026-06-24 19:20 UTCEG score recompute
  41. 2026-06-24 07:58 UTCEG score recompute
  42. 2026-06-23 21:09 UTCEG score recompute
  43. 2026-06-23 10:19 UTCEG score recompute
  44. 2026-06-22 23:30 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-54351?
CVE-2026-54351 is a critical vulnerability published on June 22, 2026. Budibase is an open-source low-code platform. Prior to 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger() allows an attacker to overwrite the…
When was CVE-2026-54351 disclosed?
CVE-2026-54351 was first published in the National Vulnerability Database on June 22, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54351 actively exploited?
CVE-2026-54351 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-54351?
CVE-2026-54351 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2026-54351?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54351, 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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