CVE-2026-6592
ComfyUI userdata Endpoint user_manager.py getuserdata cross site scripting
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 5.1EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
20 Apr 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
n/a · ComfyUIpublic PoCs found — 1
cve_referencegist.github.com/YLChen-007/50f0cdc5e3f7b737ce99c783e487ca0dunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.