CVE-2026-46424

MEDIUM

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

Title source: cna
STIX 2.1

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user identity and permissions from this cache (TTL: 3600 seconds), a user whose admin, builder, or app-level roles have been revoked via the public API retains those privileges for up to 1 hour.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.

References (2)

Core 2
Core References

Scores

CVSS v3 4.2
EPSS 0.0016
EPSS Percentile 5.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-269
Status published
Products (2)
budibase/backend-core 0 - 3.38.2npm
Budibase/budibase < 3.38.2
Published May 27, 2026
Tracked Since May 27, 2026