CVE-2026-72850

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM 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: 0.6%CVSS: 9.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
9.1CRITICALmedium 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
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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
0.6%
EPSS %ILE
47th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

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 no (CISA Vulnrichment) · Technical impact total (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 13, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
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
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

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 29× in last 7d / 175× 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 352 total refreshes for this CVE.

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

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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 on August 13, 2026, with the most recent update on August 31, 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 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72850?
CVE-2026-72850 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72850?
A fix for CVE-2026-72850 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72850 are linked in the Vendor Advisories panel on this page.

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