CVE-2026-54356
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
Product@budibase/server
PublishedAug 17, 2026
First seenAug 17, 2026
Weakness typeCWE-862Missing authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| @budibase/servernpm | v ≤ 3.38.1 | — |
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