CVE-2026-73305
Auth/role validation bug lets app-scoped builder escalate roles across apps
Is CVE-2026-73305 being exploited?
Not confirmed. CVE-2026-73305 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-73305?
CVE-2026-73305 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-73305?
Yes. A fix has been recorded for CVE-2026-73305. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-73305 affect?
CVE-2026-73305 affects Budibase < 3.39.24, Budibase server API POST /api/public/v1/roles/assign. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73305?
Upgrade Budibase to >=3.39.24, audit/revoke unexpected roles, review logs and datasource access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Privilege escalation: app-scoped builder can grant themselves/others roles in other apps, exfiltrate app data, datasource configs, and automations.
Immediate action required
- affected< 3.39.24
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.