Critical Security Flaw in Grafana: Plugin Archive Extraction Vulnerability
Summary
ALSA-2026:83544: Important: grafana security update. Affects grafana versions < 9.2.10-35.el8_10. Fixed in 9.2.10-35.el8_10. How to fix ↓
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Background
Grafana is an open-source analytics and monitoring platform that allows users to visualize and analyze data from various sources such as Graphite, InfluxDB, and OpenTSDB. It is widely used for creating dashboards and graphs to monitor system performance and application metrics. The recent vulnerability discovered in Grafana pertains to the way it handles plugin archive extraction, which can lead to unauthorized code execution.
Vulnerability Detail
The vulnerability identified as CVE-2026-15815 allows for plugin archive extraction to escape the designated plugin directory. This flaw can be exploited by an attacker to execute arbitrary code on the server, potentially leading to unauthorized access and control over the system. The issue arises from improper validation of file paths during the extraction process, making it critical for users to address this vulnerability promptly.
How To Fix
Minimum fixed version
9.2.10-35.el8_10
This is the first release that contains the fix.
sudo dnf update grafanaTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can restrict access to the Grafana server and limit the installation of untrusted plugins until the update can be applied. Additionally, monitoring logs for any suspicious activity related to plugin installations can help mitigate risks.
Conclusion
The discovery of CVE-2026-15815 in Grafana highlights the importance of maintaining up-to-date software to mitigate security risks. Users should promptly apply the available patch to protect their systems from potential exploitation. Utilizing tools like Vulert can aid in monitoring for vulnerabilities in open-source software.
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FAQ
CVE-2026-15815 is a security vulnerability in Grafana that allows for unauthorized code execution due to improper handling of plugin archive extraction.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability can lead to unauthorized access, data breaches, and potential control over the affected system.
Yes, a patch is available in version 9.2.10-35.el8_10 of Grafana. Users are encouraged to update to this version or later.
If an immediate update is not possible, consider restricting access to the Grafana server and monitoring for any suspicious activity related to plugins.
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