CVE-2026-54352
RCE in Budibase before 3.39.9 via symlink/path traversal in asset API.
Is CVE-2026-54352 being exploited?
Not confirmed. CVE-2026-54352 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 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-54352?
CVE-2026-54352 is rated Critical with a CVSS score of 9.6. 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-2026-54352?
Yes. A fix has been recorded for CVE-2026-54352. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-54352 affect?
CVE-2026-54352 affects Budibase (server) prior to 3.39.9. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-54352?
Upgrade to Budibase 3.39.9+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via crafted zip; server can read/write arbitrary files by following symlinks in asset API.
Immediate action required
- 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.