CVE-2026-100686

Budibase versions before 3.45.0 fail to validate per-app authorization in the POST /api/global/groups/:groupId/apps endpoint, allowing builders to assign application roles across workspace boundaries. A builder of a single workspace can exploit missing per-app authorization checks to grant themselves admin roles in other workspaces by modifying user group role mappings.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-269

Published

2026-09-26

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

References

• https://github.com/Budibase/budibase/security/advisories/GHSA-pp5r-q4fp-mcj3
• https://www.vulncheck.com/advisories/budibase-before-3.45.0-cross-workspace-privilege-escalation-via-post-api-global-groups-groupid-apps
• https://github.com/Budibase/budibase/security/advisories/GHSA-pp5r-q4fp-mcj3

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