CVE-2026-27498
Authenticated user can chain Read/Write Files from Disk with git to trigger RCE.
Is CVE-2026-27498 being exploited?
Not confirmed. CVE-2026-27498 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 0.72% probability of exploitation in the next 30 days.
How severe is CVE-2026-27498?
CVE-2026-27498 is rated Critical with a CVSS score of 9.0. 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-2026-27498?
Yes. A fix has been recorded for CVE-2026-27498. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-27498 affect?
CVE-2026-27498 affects n8n platform (versions < 2.2.0 and < 1.123.8). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-27498?
Upgrade to 2.2.0+ or 1.123.8+; restrict permissions; exclude readWriteFile.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE on host via crafted workflows and git ops; attacker can run arbitrary shell commands.
Patch immediately
- affected< 1.123.8
- affected>= 2.0.0 and < 2.2.0
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.