Grafana Labs recently disclosed a security incident involving its GitHub environment. According to the company's statement, an unauthorized party obtained a token that gave access to part of Grafana Labs' GitHub environment, allowing the attacker to download the company's codebase.
Grafana Labs said its investigation found no evidence that customer data or personal information was accessed, and no evidence that customer systems or operations were affected. The company also said it invalidated the compromised credentials, began forensic analysis, identified what it believes was the source of the leak, and added further security measures.
The attacker reportedly attempted to blackmail Grafana Labs by demanding payment in exchange for not releasing the codebase. Grafana Labs said it decided not to pay.
What is Grafana?
Grafana is a widely used open source observability and data visualization platform. In simple terms, it helps engineering and operations teams monitor systems, applications, infrastructure, and services through dashboards, alerts, and connected data sources.
Organizations use Grafana to visualize metrics, logs, traces, and other operational data so they can understand what is happening inside their systems. Grafana Labs describes Grafana as an open source data visualization and monitoring solution used to collect, correlate, and visualize data through dashboards.
Grafana is especially common in environments that use tools like Prometheus, Loki, Tempo, Kubernetes, cloud infrastructure, and other observability systems. Grafana Labs also offers Grafana Cloud, a managed observability platform built around open standards and integrations.
What actually happened?
Based on Grafana Labs' public statement, the incident appears to have involved a compromised access token.
A token is like a digital key. Instead of logging in with a username and password every time, systems often use tokens to authenticate automated workflows, developer tools, integrations, or services. If a token is exposed or stolen, someone else may be able to use it depending on what permissions it has.
In this case, Grafana Labs said the token gave the attacker access to its GitHub environment. That access allowed the attacker to download the company's codebase.
The important distinction is this: Grafana Labs has stated that the incident involved access to code, not customer data. The company said it found no evidence that customer data, personal information, customer systems, or customer operations were affected.
Why does codebase access matter?
Even when customer data is not accessed, unauthorized access to source code can still be serious.
A codebase may contain information that helps attackers understand how a product is built. Depending on what was exposed, attackers might look for vulnerabilities, internal comments, configuration mistakes, secrets accidentally committed to repositories, or details about future product changes.
That does not automatically mean customers are at risk. Source code exposure and customer data exposure are different things. But source code can still be valuable to attackers because it may help them search for weaknesses more efficiently.
For a company like Grafana Labs, whose tools are used by engineering teams around the world, protecting the development environment is especially important. Attackers often target software companies because compromising development systems can sometimes create opportunities for broader supply chain attacks.
How could this affect users?
Based on Grafana Labs' statement, there is currently no evidence that customer systems or operations were affected. That is the key takeaway.
Still, organizations that use Grafana should treat this as a reminder to follow normal security hygiene:
- Review Grafana-related access tokens, API keys, and integrations in your own environment
- Make sure Grafana instances are updated and follow vendor security guidance
- Check that admin access is limited and protected with multi-factor authentication
- Monitor for suspicious activity in connected systems, especially if Grafana has access to sensitive dashboards or infrastructure data
- Avoid exposing Grafana dashboards publicly unless they are intentionally designed for public access
This does not mean users need to panic. It means teams should use the incident as a reason to double-check their own setup.
Why did Grafana Labs refuse to pay?
Grafana Labs said the attacker attempted to blackmail the company by demanding payment to prevent release of the codebase. The company decided not to pay.
That position aligns with FBI guidance. The FBI says it does not support paying ransom because payment does not guarantee that an organization will get its data back, and it can encourage more criminal activity.
This is an important point. Paying an attacker does not create a real contract, does not guarantee deletion of stolen data, and does not prevent the attacker from coming back later. It can also fund and incentivize future attacks.
What can companies learn from this?
This incident highlights a common modern security risk: credentials are often more valuable than passwords. A leaked token, API key, or service credential can sometimes give attackers direct access to sensitive systems.
Organizations can reduce that risk by using short-lived tokens, limiting token permissions, rotating credentials regularly, scanning repositories for secrets, monitoring unusual GitHub activity, enforcing multi-factor authentication, and applying least-privilege access across engineering systems.
The bigger lesson is that development environments are high-value targets. GitHub, CI/CD pipelines, package registries, cloud accounts, and internal build systems all need strong monitoring and access controls.
Grafana Labs' disclosure is a good example of how companies should communicate during a security incident: explain what happened, describe what was affected, clarify what was not affected, and commit to sharing more after the investigation is complete.
At this stage, the known impact appears limited to unauthorized access to the codebase, with Grafana Labs stating that customer data and customer systems were not affected. The situation is still worth watching, especially for teams that depend heavily on Grafana in production environments.
Update May 21:
Grafana Labs has shared new details on its recent security incident tied to the TanStack npm supply-chain attack. According to the company, malicious TanStack packages were pulled into one of its CI/CD workflows, allowing credential-stealing code to run inside its GitHub environment. Grafana rotated a large number of GitHub workflow tokens during its response, but one impacted token was missed. Attackers later used that token to access private GitHub repositories and download source code, along with some business contact and operational information.
Grafana says there is no evidence that customer production data, Grafana Cloud systems, or customer operations were compromised. The company also stated that its codebase was not modified during the incident, so users do not need to take any action at this time.
Sources
- Grafana Labs official statement: https://x.com/grafana/status/2055827123236171827