CVE-2026-76054 Black Duck CVE debrief

Who should care

Users of Black Duck blackduck-c-cpp versions 1.0.17 through 3.0.6 should be aware of this vulnerability and take defensive actions to secure their build processes and API tokens. This includes rotating any Black Duck API tokens supplied through environment variables, restricting access to the build process, and monitoring for suspicious activity related to the Black Duck API token. Additionally, security teams should review compensating controls for exposed systems and track exceptions and retest remediated assets.

Technical summary

The Black Duck blackduck-c-cpp package is vulnerable to sensitive information disclosure. An actor able to execute code within the scanned project's build can obtain the Black Duck API token via the ambient process environment. This applies only where the token is supplied through the BLACKDUCK_API_TOKEN or BD_HUB_TOKEN environment variable. The vulnerability has a high CVSS score of 7.1, indicating a high level of severity. To mitigate, users should rotate any Black Duck API tokens supplied through environment variables and restrict access to the build process to prevent unauthorized code execution.

Defensive priority

High-priority defensive actions are required due to the high CVSS score of 7.1 and the potential for sensitive information disclosure.

Recommended defensive actions

• Rotate any Black Duck API tokens supplied through environment variables
• Restrict access to the build process to prevent unauthorized code execution
• Monitor for suspicious activity related to the Black Duck API token
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Evidence is limited; verification of the Black Duck API token exposure through environment variables is required. Defensive measures should focus on securing the build process and token management. The Black Duck API token can be exposed through environment variables such as BLACKDUCK_API_TOKEN or BD_HUB_TOKEN. To verify, defenders should review the build process and check for any environment variables that may contain the token. Additionally, defenders should consider implementing additional security measures such as token rotation and restricting access to the build process.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.