CVE-2026-66920
Uncontrolled recursion in Pivotick can crash/freeze browser tabs (client-side DoS).
Is CVE-2026-66920 being exploited?
Not confirmed. CVE-2026-66920 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 0.25% probability of exploitation in the next 30 days.
How severe is CVE-2026-66920?
CVE-2026-66920 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-2026-66920?
Yes. A fix has been recorded for CVE-2026-66920. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-66920 affect?
CVE-2026-66920 affects Pivotick (web application / JSON viewer). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-66920?
Apply vendor patch; limit graph complexity and sanitize/validate input.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Client-side denial-of-service: crafted graph or JSON causes recursive traversal to exhaust JS call stack, freezing or crashing the browser tab.
Patch when possible
- affected<= 1.4.0
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.