Critical Denial of Service Vulnerability in Grafana Package
Summary
ALSA-2026:46391: Important: grafana security, bug fix, and enhancement update. Affects grafana versions < 9.2.10-32.el8_10. Fixed in 9.2.10-32.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 metrics from various data sources such as Graphite, InfluxDB, and OpenTSDB. It is widely used for creating dashboards and graphs, making it a vital tool for developers and system administrators. The recent vulnerability identified in Grafana relates to insufficient input validation, which can lead to a Denial of Service (DoS) attack, potentially disrupting service availability.
Vulnerability Detail
The vulnerability, identified as CVE-2026-44740, originates from the go-git/go-billy library used within Grafana. It allows an attacker to exploit insufficient validation of crafted input, leading to a Denial of Service condition. This means that an attacker could send specially crafted requests to the Grafana server, causing it to crash or become unresponsive, thereby affecting the availability of the service for legitimate users.
How To Fix
Minimum fixed version
9.2.10-32.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
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the available patch as soon as possible to mitigate the risk.
Conclusion
The identified vulnerability in Grafana poses a significant risk of Denial of Service attacks due to insufficient input validation. Users are strongly advised to update to the patched version to ensure the security and availability of their services. Utilizing tools like Vulert can help monitor and alert for such vulnerabilities in real-time.
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FAQ
CVE-2026-44740 is a vulnerability in the Grafana package that allows for Denial of Service attacks due to insufficient input validation.
You can check if your installation is affected by using the Vulert playground at Vulert Scanner, which analyzes your manifest file for vulnerabilities.
If exploited, this vulnerability can lead to service disruptions, making Grafana unresponsive and unavailable for legitimate users.
Yes, a patch is available in the form of an updated version of Grafana: 9.2.10-32.el8_10.
While there are no specific workarounds, it is crucial to prioritize updating Grafana to mitigate the risk of exploitation.
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