High severity7.5NVD Advisory· Published Mar 20, 2025· Updated Jun 17, 2026
CVE-2024-7983
CVE-2024-7983
Description
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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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | <= 0.3.8 | — |
Affected products
3cpe:2.3:a:openwebui:open_webui:0.3.8:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:openwebui:open_webui:0.3.8:*:*:*:*:*:*:*
- (no CPE)range: unspecified
Patches
Vulnerability mechanics
References
4- huntr.com/bounties/f8156ca5-1328-480f-a72b-8d3dfdad87dcnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-5v9m-57mq-qc75ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-7983ghsaADVISORY
- github.com/open-webui/open-webui/blob/eff736acd2e0bbbdd0eeca4cc209b216a1f23b6a/backend/apps/webui/routers/utils.pyghsaWEB
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