CVE-2026-46424
MEDIUMBudibase: Missing Cache Invalidation on Public API Role Unassignment Allows Revoked Users to Retain Privileges for Up to 1 Hour
Title source: cnaDescription
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user identity and permissions from this cache (TTL: 3600 seconds), a user whose admin, builder, or app-level roles have been revoked via the public API retains those privileges for up to 1 hour.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
X_Refsource_Confirm x_refsource_confirm
https://github.com/Budibase/budibase/security/advisories/GHSA-6vp2-6r7m-2jvx
X_Refsource_Misc x_refsource_misc
https://github.com/Budibase/budibase/releases/tag/3.38.2
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