What’s Vulnerable › Vulnerabilities

CVE-2026-46424: Budibase: Missing Cache Invalidation on Public API Role Unassignment Allows Revoked Users to Retain Privileges for Up to 1 Hour

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-06-17
• Weakness: CWE-269

Description

Budibase is an open-source low-code platform. Prior to 3.38.2, the public API role unassignment endpoint (POST /api/public/v1/roles/unassign) updates user documents in CouchDB but does not invalidate the corresponding Redis user cache entries. Because the authentication middleware resolves user identity and permissions from this cache (TTL: 3600 seconds), a user whose admin, builder, or app-level roles have been revoked via the public API retains those privileges for up to 1 hour. This vulnerability is fixed in 3.38.2.

Affected products

• budibase: before 3.38.2

References

• https://github.com/Budibase/budibase/releases/tag/3.38.2
• https://github.com/Budibase/budibase/security/advisories/GHSA-6vp2-6r7m-2jvx
• https://github.com/Budibase/budibase/security/advisories/GHSA-6vp2-6r7m-2jvx

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