CVE-2026-54356

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-26. A secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Budibase is an open-source low-code platform. Prior to 3.41.3, POST /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts and packages/server/src/api/controllers/static/index.ts allows an authenticated published-app user with the BASIC role to supply attacker-controlled bucket and key values and obtain signedUrl and publicUrl values backed by stored S3 datasource credentials. This issue is fixed in version 3.41.3.

CVSS v3
7.1
EG Score
7.1HIGHmedium confidence
EG Risk
48
EG Risk 48/100CISA 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
Severity71% × 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
0.4%
EPSS %ILE
26th
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 17, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
Patch available. Sources: github, github_release.
github_release Patch Available

3.41.3

Patch available: Budibase/budibase 3.41.3

https://github.com/Budibase/budibase/releases/tag/3.41.3
githubMentions a patch (unverified)

Budibase 3.39.7 authenticated arbitrary S3 signed upload URL issuance via `/api/attachments/:datasourceId/url` · Advisory · Budibase/budibase · GitHub

https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx

Vendor Advisories for CVE-2026-54356(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(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 91× 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 164 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 17:12 UTCEPSS rescore
  4. 2026-10-07 23:48 UTCEPSS rescore
  5. 2026-10-07 11:25 UTCGHSA enrichment
  6. 2026-10-06 21:44 UTCEG score recompute
  7. 2026-10-06 21:44 UTCGHSA enrichment
  8. 2026-10-06 15:18 UTCEPSS rescore
  9. 2026-10-06 09:02 UTCEG score recompute
  10. 2026-10-06 09:02 UTCGHSA enrichment
  11. 2026-10-05 17:43 UTCEPSS rescore
  12. 2026-10-05 11:52 UTCEG score recompute
  13. 2026-10-05 11:52 UTCGHSA enrichment
  14. 2026-10-04 23:22 UTCEPSS rescore
  15. 2026-10-04 21:49 UTCGHSA enrichment
  16. 2026-10-04 06:21 UTCGHSA enrichment
  17. 2026-10-03 17:46 UTCEG score recompute
  18. 2026-10-03 17:46 UTCGHSA enrichment
  19. 2026-10-03 14:26 UTCEPSS rescore
  20. 2026-10-02 17:56 UTCEPSS rescore
  21. 2026-10-02 15:44 UTCGHSA enrichment
  22. 2026-10-02 01:33 UTCEG score recompute
  23. 2026-10-02 01:33 UTCGHSA enrichment
  24. 2026-10-01 19:50 UTCEPSS rescore
  25. 2026-10-01 11:10 UTCGHSA enrichment
Show 75 more
  1. 2026-09-30 22:35 UTCEG score recompute
  2. 2026-09-30 22:35 UTCGHSA enrichment
  3. 2026-09-30 15:03 UTCEPSS rescore
  4. 2026-09-30 09:58 UTCEG score recompute
  5. 2026-09-30 09:58 UTCGHSA enrichment
  6. 2026-09-29 15:22 UTCEPSS rescore
  7. 2026-09-28 23:33 UTCEG score recompute
  8. 2026-09-28 23:33 UTCGHSA enrichment
  9. 2026-09-28 13:51 UTCEPSS rescore
  10. 2026-09-28 10:13 UTCGHSA enrichment
  11. 2026-09-27 21:38 UTCEG score recompute
  12. 2026-09-27 21:38 UTCGHSA enrichment
  13. 2026-09-27 13:48 UTCEPSS rescore
  14. 2026-09-27 08:05 UTCEG score recompute
  15. 2026-09-27 08:05 UTCGHSA enrichment
  16. 2026-09-26 15:59 UTCEPSS rescore
  17. 2026-09-25 02:00 UTCEG score recompute
  18. 2026-09-25 02:00 UTCGHSA enrichment
  19. 2026-09-24 14:04 UTCEPSS rescore
  20. 2026-09-24 10:23 UTCGHSA enrichment
  21. 2026-09-23 21:49 UTCEG score recompute
  22. 2026-09-23 21:49 UTCGHSA enrichment
  23. 2026-09-23 17:54 UTCEPSS rescore
  24. 2026-09-23 09:14 UTCGHSA enrichment
  25. 2026-09-22 20:40 UTCEG score recompute
  26. 2026-09-22 20:40 UTCGHSA enrichment
  27. 2026-09-22 07:19 UTCEG score recompute
  28. 2026-09-22 07:19 UTCGHSA enrichment
  29. 2026-09-21 18:43 UTCGHSA enrichment
  30. 2026-09-21 06:09 UTCEG score recompute
  31. 2026-09-21 06:09 UTCGHSA enrichment
  32. 2026-09-20 20:16 UTCEPSS rescore
  33. 2026-09-20 15:54 UTCGHSA enrichment
  34. 2026-09-20 03:12 UTCEG score recompute
  35. 2026-09-20 03:12 UTCGHSA enrichment
  36. 2026-09-19 14:37 UTCGHSA enrichment
  37. 2026-09-19 01:45 UTCEG score recompute
  38. 2026-09-19 01:45 UTCGHSA enrichment
  39. 2026-09-18 19:28 UTCEPSS rescore
  40. 2026-09-18 12:54 UTCGHSA enrichment
  41. 2026-09-18 00:19 UTCEG score recompute
  42. 2026-09-18 00:19 UTCGHSA enrichment
  43. 2026-09-17 19:31 UTCEPSS rescore
  44. 2026-09-17 11:44 UTCGHSA enrichment
  45. 2026-09-16 23:05 UTCEG score recompute
  46. 2026-09-16 23:05 UTCGHSA enrichment
  47. 2026-09-16 14:08 UTCEPSS rescore
  48. 2026-09-16 10:14 UTCEG score recompute
  49. 2026-09-16 10:14 UTCGHSA enrichment
  50. 2026-09-16 05:15 UTCEPSS rescore
  51. 2026-09-15 21:27 UTCGHSA enrichment
  52. 2026-09-15 08:25 UTCEG score recompute
  53. 2026-09-15 08:25 UTCGHSA enrichment
  54. 2026-09-14 19:50 UTCGHSA enrichment
  55. 2026-09-14 05:52 UTCGHSA enrichment
  56. 2026-09-13 17:18 UTCEG score recompute
  57. 2026-09-13 17:18 UTCGHSA enrichment
  58. 2026-09-13 16:47 UTCEPSS rescore
  59. 2026-09-13 04:43 UTCGHSA enrichment
  60. 2026-09-12 16:08 UTCEG score recompute
  61. 2026-09-12 16:08 UTCGHSA enrichment
  62. 2026-09-12 03:33 UTCGHSA enrichment
  63. 2026-09-11 14:58 UTCEG score recompute
  64. 2026-09-11 14:58 UTCGHSA enrichment
  65. 2026-09-11 14:53 UTCEPSS rescore
  66. 2026-09-11 02:23 UTCGHSA enrichment
  67. 2026-09-10 13:48 UTCEG score recompute
  68. 2026-09-10 13:48 UTCGHSA enrichment
  69. 2026-09-10 09:35 UTCEPSS rescore
  70. 2026-09-10 01:13 UTCGHSA enrichment
  71. 2026-09-09 09:52 UTCEG score recompute
  72. 2026-09-09 09:52 UTCGHSA enrichment
  73. 2026-09-08 22:01 UTCEPSS rescore
  74. 2026-09-08 21:17 UTCGHSA enrichment
  75. 2026-09-08 08:28 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-54356?
CVE-2026-54356 is a high vulnerability published on August 17, 2026. Budibase is an open-source low-code platform. Prior to 3.41.3, POST /api/attachments/:datasourceId/url in packages/server/src/api/routes/static.ts and packages/server/src/api/controllers/static/index.ts allows an authenticated published-app user with the BASIC role to supply attacker-controlled…
When was CVE-2026-54356 disclosed?
CVE-2026-54356 was first published on August 17, 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-2026-54356 actively exploited?
CVE-2026-54356 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-54356?
CVE-2026-54356 has a CVSS base score of 7.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-54356?
A fix for CVE-2026-54356 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-54356 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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