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CVE-2026-66800: Azure Data Factory Information Disclosure Vulnerability

highCVSS 8.6CVE-2026-66800
Server-side request forgery (ssrf) in Azure Data Factory allows an unauthorized attacker to disclose information over a network.

CSIRTS triage

vendor: Microsoftproduct: Azure Data FactoryServer-side request forgeryInformation disclosure
What
Server-side request forgery allows unauthorized information disclosure.
Who is affected
Azure Data Factory users and deployments are affected.
Urgency
High severity with CVSS 8.6 requires timely remediation.
Action
Apply available Microsoft security updates.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 8.6
Published
2026-08-11
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66800

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-66800coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Azure Data Factory

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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