CVE-2026-41428
criticalBudibase is an open-source low-code platform.
Vendor / product: Budibase — budibase
Budibase is an open-source low-code platform. Prior to 3.35.4, the authenticated middleware uses unanchored regular expressions to match public (no-auth) endpoint patterns against ctx.request.url. Since ctx.request.url in Koa includes the query string, an attacker can access any protected endpoint by appending a public endpoint path as a query parameter. For example, POST /api/global/users/search?x=/api/system/status bypasses all authentication because the regex /api/system/status/ matches in the query string portion of the URL. This vulnerability is fixed in 3.35.4.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/Budibase/budibase/security/advisories/GHSA-8783-3wgf-jggf security-advisories@github.com
- https://github.com/Budibase/budibase/security/advisories/GHSA-8783-3wgf-jggf 134c704f-9b21-4f2e-91b3-4a467353bcc0

