CVE-2026-35477 inventree CVE debrief

Who should care

Users of InvenTree versions 1.2.3 through 1.2.6, particularly those with staff permissions, should be aware of this vulnerability and take steps to mitigate it, including reviewing system logs for potential exploitation attempts and ensuring that only trusted staff users have access to template creation and editing.

Technical summary

The vulnerability in InvenTree versions 1.2.3 to 1.2.6 stems from the incomplete fix for CVE-2026-27629. The PART_NAME_FORMAT validator was upgraded to use jinja2.sandbox.SandboxedEnvironment, but the renderer in part/helpers.py still uses the non-sandboxed jinja2.Environment. This discrepancy allows conditional template expressions to behave differently during validation versus production rendering. A staff user can exploit this by crafting a template that passes validation but executes arbitrary code during rendering.

Defensive priority

Medium priority due to the requirement for staff permissions and the potential for code execution. Defenders should focus on restricting template creation and editing to trusted staff users and monitoring for suspicious template changes and system behavior. Upgrade to InvenTree version 1.2.7 or 1.3.0 as soon as possible. Implement compensating controls for exposed systems while remediation is scheduled and verified. Review 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. Consider asset inventory and rollback/change windows as part of the remediation plan. Source tracking and exposure review are also recommended to ensure comprehensive mitigation. 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. Check for potential overlaps with existing security controls and verify the effectiveness of the implemented mitigations. This multi-layered approach will help minimize the risk associated with this vulnerability and ensure a robust defense against potential attacks. The actions should be coordinated with relevant stakeholders, including IT operations, development teams, and management, to ensure a smooth and efficient remediation process. By prioritizing these defensive measures, organizations can effectively mitigate the risk posed by CVE-2026-35477 and protect their systems from potential exploitation. In addition to these immediate actions, it is essential to incorporate this vulnerability into the organization's overall vulnerability management program, ensuring that similar issues are identified and addressed promptly in the future. This includes regular security audits, penetration testing, and employee training to prevent similar incidents from occurring. By taking a proactive and comprehensive approach to security, organizations can minimize the risk of cyberatt

Recommended defensive actions

• Upgrade to InvenTree version 1.2.7 or 1.3.0
• Restrict template creation and editing to trusted staff users
• Monitor for suspicious template changes and system behavior
• 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

The CVE record was published on 2026-04-08T20:16:24.487Z and last modified on 2026-07-24T21:10:00.143Z. The NVD entry is currently Analyzed. The vulnerability has a CVSS score of 5.5 and a severity of MEDIUM. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify the affected versions and configurations, and review system logs for potential exploitation attempts.

Official resources