Platform
azure
Component
azure-logic-apps
CVE-2026-21227 describes a path traversal vulnerability within Azure Logic Apps. This flaw allows an unauthorized attacker to potentially elevate privileges across a network by manipulating file paths. The vulnerability impacts versions of Azure Logic Apps less than or equal to the currently known affected versions. Microsoft is expected to release a patch to address this issue.
The path traversal vulnerability in Azure Logic Apps presents a significant risk. An attacker exploiting this flaw could potentially read or write arbitrary files on the system, bypassing intended access controls. This could lead to unauthorized access to sensitive data, modification of critical system configurations, or even the execution of malicious code. The ability to elevate privileges over a network expands the attack surface, potentially allowing an attacker to compromise other resources within the Azure environment. Successful exploitation could result in data breaches, system disruption, and reputational damage.
CVE-2026-21227 was publicly disclosed on January 22, 2026. The EPSS score is pending evaluation. There are currently no publicly known proof-of-concept exploits for this vulnerability, but the path traversal nature of the flaw makes it a likely target for exploitation. Monitor security advisories and threat intelligence feeds for updates.
Exploit Status
EPSS
0.14% (34% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-21227 is to upgrade to a patched version of Azure Logic Apps as soon as it becomes available from Microsoft. Until a patch is deployed, review all Logic App configurations to identify and eliminate any potential file path manipulation vulnerabilities. Implement strict input validation and sanitization to prevent attackers from injecting malicious file paths. Consider using network segmentation to limit the potential blast radius of a successful attack. Monitor Azure Logic Apps logs for suspicious activity, such as attempts to access unauthorized files.
Aplique las actualizaciones de seguridad proporcionadas por Microsoft para Azure Logic Apps. Consulte el boletín de seguridad de Microsoft (MSRC) para obtener más detalles e instrucciones específicas sobre cómo mitigar esta vulnerabilidad. Asegúrese de que sus aplicaciones Logic Apps sigan las mejores prácticas de seguridad para evitar el recorrido de rutas.
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CVE-2026-21227 is a path traversal vulnerability in Azure Logic Apps allowing attackers to potentially elevate privileges. It affects versions less than or equal to the currently known affected versions, with a CVSS score of 8.2 (HIGH).
If you are using Azure Logic Apps versions less than or equal to the currently known affected versions, you are potentially affected. Review your deployments and configurations.
Upgrade to a patched version of Azure Logic Apps as soon as it becomes available. Until then, review configurations and implement strict input validation.
While no public exploits are currently known, the nature of the vulnerability makes it a likely target for exploitation. Monitor security advisories.
Refer to the official Microsoft Security Update Guide for CVE-2026-21227 when available.
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