CVE-2026-25054
XSS in n8n markdown renderer enables script execution by authenticated users, risking session hijack.
Is CVE-2026-25054 being exploited?
Not confirmed. CVE-2026-25054 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 0.19% probability of exploitation in the next 30 days.
How severe is CVE-2026-25054?
CVE-2026-25054 is rated High with a CVSS score of 8.5. 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-2026-25054?
Yes. A fix has been recorded for CVE-2026-25054. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-25054 affect?
CVE-2026-25054 affects n8n < 1.123.9, n8n < 2.2.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-25054?
Upgrade to 1.123.9 or 2.2.1
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user can execute scripts in other users' browsers, gaining session access and potential account takeover.
Patch when possible
- affected< 1.123.9
- affected< 2.2.1
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.