CVE-2026-56399

mediumCVSS 5covered by 1 sourcefirst seen 2026-06-30

Open WebUI before 0.6.27 contains a server-side request forgery vulnerability in the /api/v1/retrieval/process/web endpoint that allows authenticated users to bypass SSRF protections. Attackers can manipulate URL parameters with location redirect headers to access internal services and potentially execute commands via instance secrets.

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Exploitation outlook

Low exploitation risk0.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-56399: Open WebUI before 0.6.27 contains a server-side request forgery vulnerability in the /api/v1/r…nvd · 2026-06-30

External references

NVD record for CVE-2026-56399

CVE.org record

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