CVE-2026-6589 | ComfyUI up to 0.13.0 server.py create_origin_only_middleware cross-site request forgery

VDB-358224 · SUBMIT #791108 · CVE-2026-6589 COMFYUI UP TO 0.13.0 SERVER.PY CREATE_ORIGIN_ONLY_MIDDLEWARE CROSS-SITE REQUEST FORGERY HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.9 $0-$5k 2.48+ Summaryinfo A vulnerability was found in ComfyUI up to 0.13.0. It has been declared as problematic. This impacts the function create_origin_only_middleware of the file server.py. The manipulation results in cross-site request forgery. This vulnerability is cataloged as CVE-2026-6589. The attack may be launched remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in ComfyUI up to 0.13.0. It has been classified as problematic. Affected is the function create_origin_only_middleware of the file server.py. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The advisory is shared for download at gist.github.com. This vulnerability is traded as CVE-2026-6589. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name ComfyUI Version 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.10 0.11 0.12 0.13.0 CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 3.9 VulDB Base Score: 4.3 VulDB Temp Score: 3.9 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross-site request forgery CWE: CWE-352 / CWE-862 / CWE-863 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/19/2026 Advisory disclosed 04/19/2026 +0 days VulDB entry created 04/19/2026 +0 days VulDB entry last update Sourcesinfo Advisory: gist.github.com Status: Not defined CVE: CVE-2026-6589 (🔒) GCVE (CVE): GCVE-0-2026-6589 GCVE (VulDB): GCVE-100-358224 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/19/2026 11:49 Changes: 04/19/2026 11:49 (55) Complete: 🔍 Submitter: Eric-c Cache ID: 99:22D:101 Submitinfo Accepted Submit #791108: comfyanonymous ComfyUI <= 0.13.0 (commit 88e63705) Origin Validation Error (CWE-346) (by Eric-c) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸