CVE-2026-13493 is a vulnerability in AIDC-AI ComfyUI-Copilot versions 2.0.0 through 2.0.28 affecting the Workflow Checkpoint Restore Handler component. The issue arises from improper control of resource identifiers in the file backend/controller/conversation_api.py. This flaw allows an attacker to manipulate resource identifiers remotely, though exploitation is difficult due to high complexity and requires low privileges without user interaction. While an exploit is publicly available, no official patch or remediation has been published; a fix is under review in a pending pull request.

The vulnerability allows remote attackers to improperly control resource identifiers, which could lead to unintended behavior in the affected component. However, the low CVSS score (2.3) and the high attack complexity indicate limited impact and difficulty in exploitation. No privilege escalation, user interaction, or confidentiality/integrity/availability impacts beyond low scope are indicated.

No official fix or patch is currently available. A pull request addressing the vulnerability is awaiting acceptance. Users should monitor the vendor's repository or advisory channels for the official patch release. Until then, be aware of the vulnerability but no immediate mitigation actions are specified.