MinorCritical vulnerability
CVE-2026-109294 (CVSS 7.1)
NVD · officialPublished Oct 12, 2026Risk 23/100
Open WebUI from 0.6.42 before 0.11.4 contains an uncontrolled resource consumption vulnerability that allows authenticated users to exhaust server memory by supplying compressed remote image URLs in chat messages. Attackers can point the image field at a host returning gzip-encoded responses, which get_image_base64_from_url decompresses unbounded, causing denial of service for all users.
Technical details
CVSS
7.1
AV:NetworkAC:LowPR:LowUI:None
Evidence and sources
This record is attributed to NVD. Exploitation status and remediation guidance are kept separate from the vulnerability's technical severity.
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