CVE-2026-76055 Black Duck CVE debrief

Who should care

Organizations using Black Duck blackduck-c-cpp before 3.0.7 should be aware of this vulnerability and take steps to mitigate it. This includes upgrading to a patched version, restricting write access to the scanned build directory, and monitoring for suspicious activity in the scanned build directory. The vulnerability has a high severity and a CVSS score of 7.5, indicating a significant risk to affected systems. Affected operators, platforms, and security teams should prioritize mitigation efforts to prevent potential command execution. Vulnerability management and security teams should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed. Compensating controls for exposed systems should be reviewed while remediation is scheduled and verified. Relevant monitoring, detection, and logs for exposed assets should be checked for extra review. Exceptions, retested remediated assets, and closed items should be tracked only after evidence is documented. Asset inventory and source tracking can help identify and prioritize affected systems. Rollback/change windows and source tracking can aid in remediation efforts. The goal is to minimize the risk of command execution and protect sensitive data. By taking these steps, organizations can reduce the likelihood of a successful attack and minimize potential damage. It is essential to stay informed about the vulnerability and its potential impact on affected systems. By being proactive and taking steps to mitigate the vulnerability, organizations can help protect their systems and data from potential threats. The CVE-2026-76055 vulnerability is a significant risk to affected systems, and organizations should take immediate action to mitigate it. The vulnerability affects Black Duck blackduck-c-cpp before 3.0.7, and organizations using this version should prioritize upgrading to a patched version. Additionally, organizations should restrict write access to the scanned build directory and monitor for suspicious activity in the scanned build directory. By

Technical summary

The package manager component of Black Duck blackduck-c-cpp before 3.0.7 is vulnerable to Improper Neutralization of Special Elements used in an OS Command. An actor able to create a file within the scanned build directory can execute operating system commands as the account running the scan. This is due to filesystem paths encountered while traversing the scanned directory being interpolated into command strings that are executed through a shell without quoting or escaping.

Defensive priority

Organizations using Black Duck blackduck-c-cpp before 3.0.7 should prioritize upgrading to a patched version to prevent potential command execution.

Recommended defensive actions

• Upgrade Black Duck blackduck-c-cpp to version 3.0.7 or later
• Restrict write access to the scanned build directory
• Monitor for suspicious activity in the scanned build directory
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.
• Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE description indicates that Improper Neutralization of Special Elements used in an OS Command in the package manager component of Black Duck blackduck-c-cpp before 3.0.7 allows an actor able to create a file within the scanned build directory to execute operating system commands as the account running the scan. Filesystem paths encountered while traversing the scanned directory are interpolated into command strings that are executed through a shell without quoting or escaping.

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.