CVE-2026-72850

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-14. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

Budibase before 3.40.0 fails to properly sanitize S3 object keys, allowing authenticated builders to upload files with traversal sequences that are preserved during export. Attackers can craft filenames containing .. segments that escape the temporary directory during workspace export, writing arbitrary content to any path writable by the Budibase process.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Budibase before 3.40.0 Arbitrary File Write via Path Traversal | Advisories | VulnCheck

https://www.vulncheck.com/advisories/budibase-before-arbitrary-file-write-via-path-traversal
github Patch Available🟡 PoC Available

Arbitrary File Write via retrieveDirectory S3-Key Path Traversal · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-pxwc-66g3-5f27

Vendor Advisories for CVE-2026-72850(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 61× in last 7d / 67× 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. 2026-08-21 07:17 UTCGHSA enrichment
  2. 2026-08-21 03:18 UTCGHSA enrichment
  3. 2026-08-20 23:18 UTCEG score recompute
  4. 2026-08-20 23:18 UTCGHSA enrichment
  5. 2026-08-20 22:56 UTCEPSS rescore
  6. 2026-08-20 19:19 UTCGHSA enrichment
  7. 2026-08-20 15:19 UTCGHSA enrichment
  8. 2026-08-20 11:20 UTCGHSA enrichment
  9. 2026-08-20 07:20 UTCGHSA enrichment
  10. 2026-08-20 03:21 UTCGHSA enrichment
  11. 2026-08-19 23:21 UTCGHSA enrichment
  12. 2026-08-19 19:22 UTCEG score recompute
  13. 2026-08-19 19:22 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 15:20 UTCGHSA enrichment
  16. 2026-08-19 11:14 UTCGHSA enrichment
  17. 2026-08-19 07:12 UTCGHSA enrichment
  18. 2026-08-19 03:11 UTCGHSA enrichment
  19. 2026-08-18 23:10 UTCGHSA enrichment
  20. 2026-08-18 19:12 UTCGHSA enrichment
  21. 2026-08-18 15:13 UTCEG score recompute
  22. 2026-08-18 15:13 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 11:14 UTCGHSA enrichment
Show 42 more
  1. 2026-08-18 07:10 UTCGHSA enrichment
  2. 2026-08-18 03:10 UTCGHSA enrichment
  3. 2026-08-17 23:08 UTCGHSA enrichment
  4. 2026-08-17 19:07 UTCEG score recompute
  5. 2026-08-17 19:07 UTCGHSA enrichment
  6. 2026-08-17 13:47 UTCEPSS rescore
  7. 2026-08-17 13:42 UTCGHSA enrichment
  8. 2026-08-17 09:43 UTCGHSA enrichment
  9. 2026-08-17 05:44 UTCGHSA enrichment
  10. 2026-08-17 01:35 UTCGHSA enrichment
  11. 2026-08-16 21:36 UTCGHSA enrichment
  12. 2026-08-16 17:37 UTCEG score recompute
  13. 2026-08-16 17:37 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 13:29 UTCGHSA enrichment
  17. 2026-08-16 09:29 UTCGHSA enrichment
  18. 2026-08-16 05:30 UTCEG score recompute
  19. 2026-08-16 05:30 UTCGHSA enrichment
  20. 2026-08-16 02:15 UTCEPSS rescore
  21. 2026-08-16 01:31 UTCGHSA enrichment
  22. 2026-08-15 21:32 UTCGHSA enrichment
  23. 2026-08-15 17:33 UTCGHSA enrichment
  24. 2026-08-15 13:34 UTCGHSA enrichment
  25. 2026-08-15 09:30 UTCGHSA enrichment
  26. 2026-08-15 05:31 UTCGHSA enrichment
  27. 2026-08-15 01:31 UTCEG score recompute
  28. 2026-08-15 01:31 UTCGHSA enrichment
  29. 2026-08-15 01:31 UTCEPSS rescore
  30. 2026-08-14 21:32 UTCGHSA enrichment
  31. 2026-08-14 17:33 UTCEG score recompute
  32. 2026-08-14 17:33 UTCGHSA enrichment
  33. 2026-08-14 16:25 UTCEG score recompute
  34. 2026-08-14 16:25 UTCGHSA enrichment
  35. 2026-08-14 14:21 UTCGHSA enrichment
  36. 2026-08-14 10:22 UTCGHSA enrichment
  37. 2026-08-14 06:23 UTCGHSA enrichment
  38. 2026-08-14 02:24 UTCEG score recompute
  39. 2026-08-14 02:24 UTCGHSA enrichment
  40. 2026-08-13 22:25 UTCEG score recompute
  41. 2026-08-13 22:09 UTCEG score recompute
  42. 2026-08-13 22:09 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72850?
CVE-2026-72850 is a critical vulnerability published on August 13, 2026. Budibase before 3.40.0 fails to properly sanitize S3 object keys, allowing authenticated builders to upload files with traversal sequences that are preserved during export. Attackers can craft filenames containing .. segments that escape the temporary directory during workspace export, writing…
When was CVE-2026-72850 disclosed?
CVE-2026-72850 was first published in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72850 actively exploited?
CVE-2026-72850 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 64.5% of all scored CVEs.
What is the CVSS score of CVE-2026-72850?
CVE-2026-72850 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-72850?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72850, 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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