CVE-2026-66800
SSRF in Azure Data Factory can expose internal endpoints and sensitive metadata.
Is CVE-2026-66800 being exploited?
Not confirmed. CVE-2026-66800 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 0.54% probability of exploitation in the next 30 days.
How severe is CVE-2026-66800?
CVE-2026-66800 is rated High with a CVSS score of 8.6. 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-2026-66800?
Yes. A fix has been recorded for CVE-2026-66800. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-66800 affect?
CVE-2026-66800 affects Microsoft Azure Data Factory (cloud service). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-66800?
Restrict ADF network access, use private endpoints, limit identities, validate inputs, monitor logs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Server‑Side Request Forgery lets attackers make backend requests to internal endpoints/metadata, potentially exposing credentials or sensitive data.
Immediate action required