PYSEC-2026-1723

vendorUSosv

Open WebUI denial of service through endpoint for converting markdown

view advisory published 2026-07-07Licence: 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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2024-7983US——
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…
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references

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