CVE-2026-54351
Budibase webhook allows RCE via mass assignment pre-3.39.9.
Is CVE-2026-54351 being exploited?
Not confirmed. CVE-2026-54351 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-2026-54351?
CVE-2026-54351 is rated High with a CVSS score of 8.2. 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-2026-54351?
Yes. A fix has been recorded for CVE-2026-54351. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-54351 affect?
CVE-2026-54351 affects Budibase (pre-3.39.9). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-54351?
Upgrade to 3.39.9+; audit webhook exposure
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE via webhook by overwriting appId; attacker runs automation in victim workspace with full DB read/write.
Patch when possible
- affected< 3.39.9
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.