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Vulnerability record · CVE-2026-54356 · published 17 August 2026

CVE-2026-54356: Missing authorization vulnerability

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.

7.1 CVSS 3.1 High EPSS 0.35% · top 73.7% CWE-862 · Missing authorization Deferred
7.1CVSS 3.1 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
8 Sep 2026Last modified by NVD

Description

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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

References

LinkTags
https://github.com/Budibase/budibase/releases/tag/3.41.3
https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx
https://github.com/Budibase/budibase/security/advisories/GHSA-6x9p-4r67-5gjx

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Source: NIST National Vulnerability Database (record CVE-2026-54356), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.