GHSA-5v9m-57mq-qc75

ghsaUSosv

Open WebUI denial of service through endpoint for converting markdown

view advisory published 2025-03-20Licence: CC-BY-4.0

In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend excessive time converting it, leading to a denial of service. The server becomes unresponsive to other requests until the conversion is complete.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2024-7983US	—	0.88% (59th)	—	2025-03-20
In version 0.3.8 of open-webui, an endpoint for converting markdown to HTML is exposed without authentication. A maliciously crafted markdown payload can cause the server to spend…

references

External citations — patches, advisories, analysis.

https://github.com/open-webui/open-webuiPACKAGE
https://github.com/open-webui/open-webui/blob/eff736acd2e0bbbdd0eeca4cc209b216a1f23b6a/backend/apps/webui/routers/utils.py#L49WEB
https://huntr.com/bounties/f8156ca5-1328-480f-a72b-8d3dfdad87dcWEB
https://nvd.nist.gov/vuln/detail/CVE-2024-7983ADVISORY

scry

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