CVE-2026-73140 MISP CVE debrief

Who should care

Users and administrators of cti-transmute installations should review and apply the patch to prevent potential information disclosure. Those responsible for security monitoring and incident response may need to assess exposure and monitor for misuse of leaked data. Affected operators, platforms, and security teams should prioritize patching and review their vulnerability management processes. Security teams should also verify that their monitoring and detection capabilities can identify potential misuse of leaked report data. Additionally, asset inventory and configuration management processes may need to be updated to ensure accurate tracking of affected systems. Rollback and change window management procedures should also be reviewed to minimize potential downtime during remediation. Source tracking and incident response planning should be updated to address potential exploitation of this vulnerability. Compensating controls, such as additional monitoring or access restrictions, may be necessary for exposed systems while remediation is scheduled and verified. The security team should also consider implementing additional logging and auditing to detect potential security incidents related to this vulnerability. Finally, the security team should review and update their incident response plan to address potential security incidents related to this vulnerability. Security teams should also review their current patch management processes to ensure that similar vulnerabilities are addressed in a timely manner in the future. Security teams should also consider implementing a vulnerability management program to identify and prioritize vulnerabilities based on their potential impact on the organization. The security team should also review and update their security policies and procedures to address potential security risks associated with this vulnerability. The security team should also consider implementing additional security controls, such as multi-factor authentication or access controls, to reduce the risk of exploitation of this vulnerability. The security team should also review and update their security awareness and training programs to ensure that employees

Technical summary

The cti-transmute library failed to apply comment-level access-control rules when generating evaluation report exports. This could allow a user authorized to view a conversion to export its evaluation report and obtain private evaluation comments meant for the conversion owner, comment author, or administrators. The issue is resolved by filtering comments based on user permissions. Affected product deployments should be reviewed for exposure, and compensating controls may be necessary while remediation is scheduled.

Defensive priority

Medium-priority defensive review recommended due to potential information disclosure.

Recommended defensive actions

• Review and apply the official patch for cti-transmute
• Inventory and assess exposure of cti-transmute installations
• Monitor for potential misuse of leaked report data
• Verify affected deployments and assess exposure
• Implement compensating controls for exposed systems while remediation is scheduled
• Review and update incident response planning to address potential exploitation of this vulnerability
• Update asset inventory and configuration management processes to ensure accurate tracking of affected systems

Evidence notes

Evidence from official CVE and NVD sources indicates that cti-transmute failed to apply comment-level access-control rules when generating evaluation report exports. The fix involves passing the requesting user into the report builder and filtering every evaluation comment using the shared access.can_see_comment() authorization function. Defenders should verify affected deployments, assess exposure, and monitor for potential misuse of leaked report data.

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.