CVE-2026-6592: ComfyUI userdata Endpoint user_manager.py getuserdata cross site scripting

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-20 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability has been found in ComfyUI up to 0.13.0. Affected by this vulnerability is the function getuserdata of the file app/user_manager.py of the component userdata Endpoint. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

ComfyUI: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+7)

References

https://gist.github.com/YLChen-007/50f0cdc5e3f7b737ce99c783e487ca0d
https://vuldb.com/submit/791113
https://vuldb.com/vuln/358227
https://vuldb.com/vuln/358227/cti

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