UnratedPublic exploit

Improper Resource Identifier Control in AIDC-AI ComfyUI-Copilot Workflow Checkpoint Restore Handler

IdentifiersCVE-2026-13493CWE-99

CVE-2026-13493 is an improper control of resource identifiers issue in AIDC-AI ComfyUI-Copilot affecting versions up to 2.0.28. The flaw is reported in backend/controller/conversation_api.py within the Workflow Checkpoint Restore Handler. According to the available advisory, manipulation of this handler allows an attacker to influence resource identifiers improperly. The vulnerable function or code path is not further specified in the provided content, but the issue appears to stem from insufficient validation or authorization around identifiers used during workflow checkpoint restore operations. The attack can be performed remotely, although it is described as high complexity and difficult to exploit.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation may allow a remote attacker to gain improper control over resource identifiers handled by the Workflow Checkpoint Restore functionality. Based on the available information, this could enable unauthorized reference, selection, or restoration of resources outside the intended scope. The precise downstream impact is not specified in the provided content, so it is currently not available whether this leads to data exposure, unauthorized workflow manipulation, or broader application compromise.

Mitigation

If you can’t patch tonight, do this now.

No vendor-specific mitigation is provided in the available content. As an interim measure, restrict remote access to AIDC-AI ComfyUI-Copilot, especially the Workflow Checkpoint Restore functionality. If possible, disable or gate the affected restore handler behind strong authentication and authorization controls, and monitor for abnormal or unauthorized checkpoint restore requests until an official fix is released.

Remediation

Patch, then assume compromise.

Upgrade to a fixed release once one is published by the vendor or project maintainers. The provided advisory states that a pull request addressing the issue exists but was still awaiting acceptance at the time of reporting, and no released fixed version is identified in the available content.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

7 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity7

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2026-13493

NVD

nvd.nist.gov/vuln/detail/CVE-2026-13493

MITRE CWE · CWE-99

cwe.mitre.org