CVE-2026-48551

Nagios Core before 4.5.14 and Nagios XI before 2026R1.7 contain a cross-site request forgery protection bypass via a self-supplied double-submit cookie. An attacker can supply matching cookie and request parameter values to bypass CSRF protection, enabling unauthenticated attackers to run commands as authorized users via malicious links.

CVSS v3 7.4 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog
https://www.nagios.com/security-disclosures/nagios-core/
https://www.vulncheck.com/advisories/nagios-core-xi-csrf-protection-bypass-via-double-submit-cookie

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-12 17:17

Updated : 2026-09-08 20:28

NVD link : CVE-2026-48551

Mitre link : CVE-2026-48551

CVE.ORG link : CVE-2026-48551

JSON object : View

Products Affected

No product.

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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