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Advisories

Open WebUI 0.6.42 before 0.11.4 Memory Exhaustion via Compressed Remote Image

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severity
high
date
Affecting

  • open-webui >= 0.6.42, < 0.11.4

CWE
  • CWE-400 Uncontrolled Resource Consumption
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
y4rvin, Classic298
Description
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.

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