CVE-2026-34840

OneUptime · OneUptime Platform

OneUptime, an open-source monitoring and observability platform, contains a vulnerability that could impact the security of its monitoring environment.

Executive summary

A high-severity flaw in the OneUptime platform could allow unauthorized actors to compromise observability data or gain unauthorized access to monitoring configurations.

Vulnerability

The vulnerability exists within the core OneUptime observability platform. While the specific function is not detailed, the high CVSS score suggests a critical failure in access control or input handling, potentially accessible by unauthenticated remote attackers.

Business impact

Compromise of an observability platform is a critical risk, as it provides attackers with visibility into the entire infrastructure's health and potential weaknesses. A CVSS score of 8.1 reflects the high potential for unauthorized access and data exfiltration. This could lead to a loss of trust in system monitoring and delayed responses to legitimate outages.

Remediation

Immediate Action: Apply the latest security patches provided by the OneUptime project to secure the monitoring environment.

Proactive Monitoring: Review audit logs for unauthorized configuration changes or anomalous access patterns originating from unknown IP addresses.

Compensating Controls: Restrict access to the OneUptime dashboard and API using network-level access control lists (ACLs) or a VPN to limit exposure to trusted users only.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Immediate patching is required to protect the integrity of your observability stack. Given the CVSS score of 8.1, this should be treated as a priority remediation task to prevent attackers from gaining a "god's eye view" of your network operations.