Full Report
Grafana Labs disclosed that hackers have downloaded its source code after breaching its GitHub environment using a stolen access token. [...]
Analysis Summary
# Incident Report: Source Code Exfiltration via Compromised GitHub Token
## Executive Summary
Grafana Labs experienced a security breach in its GitHub environment facilitated by a stolen access token. The threat actor, identified as the extortion group "CoinbaseCartel," successfully exfiltrated Grafana’s source code and attempted to demand a ransom. Grafana Labs has refused to pay the ransom, stating that no customer data or live systems were impacted.
## Incident Details
- **Discovery Date:** Mid-May 2026 (Disclosed May 18, 2026)
- **Incident Date:** Circa May 2026
- **Affected Organization:** Grafana Labs
- **Sector:** Information Technology / Open-source Software
- **Geography:** Global
## Timeline of Events
### Initial Access
- **Date/Time:** Specific timestamp not disclosed; confirmed prior to May 18, 2026.
- **Vector:** Compromised Credentials.
- **Details:** Attackers utilized a stolen GitHub access token to gain unauthorized entry into Grafana’s GitHub environment.
### Lateral Movement
- Details regarding internal movement were not disclosed; the attack focus appeared to be direct access to repositories via the compromised token.
### Data Exfiltration/Impact
- **Exfiltration:** The attackers successfully downloaded Grafana's source code.
- **Extortion:** CoinbaseCartel listed Grafana on their Data Leak Site (DLS) and issued a ransom demand to prevent the public release of the code.
### Detection & Response
- **Discovery:** Likely detected via internal monitoring of GitHub environment activity or following the extortion attempt.
- **Response Actions:** Grafana invalidated the compromised credentials, performed a forensic analysis, and engaged with the FBI.
## Attack Methodology
- **Initial Access:** Stolen GitHub Access Token.
- **Persistence:** Not explicitly stated, though the use of an access token allows for persistent API access until revoked.
- **Privilege Escalation:** Not disclosed; the token likely held sufficient permissions for repository cloning.
- **Defense Evasion:** Use of legitimate tokens to mimic authorized administrative/developer activity.
- **Credential Access:** Theft of GitHub Personal Access Tokens (PATs) or OAuth tokens.
- **Discovery:** Mapping of GitHub repositories and organization structure.
- **Lateral Movement:** Accessing multiple repositories within the GitHub environment.
- **Collection:** Bulk cloning/downloading of source code repositories.
- **Exfiltration:** HTTPS transfer of code via GitHub’s native interface or API.
- **Impact:** Financial extortion and intellectual property theft.
## Impact Assessment
- **Financial:** No ransom paid; costs associated with incident response and forensic investigation.
- **Data Breach:** Confirmed theft of source code; no evidence of customer PII or system exposure.
- **Operational:** Minimal disruption reported to customer-facing services.
- **Reputational:** High-profile disclosure due to Grafana’s massive user base (70% of Fortune 50).
## Indicators of Compromise
- **Network indicators:** None provided in the public disclosure.
- **File indicators:** Possible use of "shinysp1d3r" encryptor (associated with the actor, though not confirmed used in this specific incident).
- **Behavioral indicators:** Unusual repository cloning patterns; API calls from unrecognized IP addresses using a legitimate service token.
## Response Actions
- **Containment:** Immediately invalidated all compromised GitHub access tokens.
- **Eradication:** Implementation of "additional security measures" to secure the GitHub environment.
- **Recovery:** Public disclosure of the incident and refusal to negotiate with threat actors.
## Lessons Learned
- **Token Management:** Static access tokens represent a significant risk; if stolen, they provide a direct path to intellectual property without requiring MFA.
- **Extortion Trends:** Groups like CoinbaseCartel (affiliates of ShinyHunters/Lapsus$) are increasingly focusing on "encryptionless" extortion, focusing solely on data theft.
## Recommendations
- **Rotate Tokens Regularly:** Implement short-lived tokens and automate the rotation of Personal Access Tokens (PATs).
- **IP Whitelisting:** Restrict GitHub access to known corporate IP ranges where possible.
- **Secret Scanning:** Employ automated tools to ensure no secrets or tokens are hardcoded within the repositories themselves.
- **Enhanced Logging:** Enable and monitor GitHub Audit Logs for anomalous activity, such as bulk repository downloads or access from unusual geographies.