Open WebUI vulnerable to denial of service via starlette dependency
open-webui, fastapi, starlette
Open WebUI contains a vulnerable starlette dependency through fastapi that allows memory exhaustion and denial of service. The issue has been addressed in updated framework versions.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- fix status
- Fix status unknown
- first report
- 20 Mar 2025
- last update
- 20 Mar 2025
Timeline · 1
Sources · 1
Advisories and databases
- 2025-03-20GHSA-w466-2wfc-8g58: Open WebUI has vulnerable dependency on starlette via fastapiGitHub Advisory Database · github.com/advisories/GHSA-w466-2wfc-8g58
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Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 20 Mar 2025 · first reported 20 Mar 2025
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 07:00Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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the brief as text
# Open WebUI vulnerable to denial of service via starlette dependency https://gcdradar.vercel.app/incidents/open-webui-vulnerable-to-denial-of-service-via-starlette-dep · AIR-2025-0244 · closed 2025-03-20 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-03-20 - AI role: Attack on AI - Products: open-webui, fastapi, starlette ## Summary Open WebUI contains a vulnerable starlette dependency through fastapi that allows memory exhaustion and denial of service. The issue has been addressed in updated framework versions. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-03-20: GHSA-w466-2wfc-8g58: Open WebUI has vulnerable dependency on starlette via fastapi (https://github.com/advisories/GHSA-w466-2wfc-8g58) ## Sources - 2025-03-20 GitHub Advisory Database: GHSA-w466-2wfc-8g58: Open WebUI has vulnerable dependency on starlette via fastapi https://github.com/advisories/GHSA-w466-2wfc-8g58 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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AI