CVE-2026-56399
mediumpriority · track · 0EPSS 0.005 · 39 %ileEUEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774cnnvd
- https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mwcnnvd
- https://www.vulncheck.com/advisories/open-webui-server-side-request-forgery-via-location-redirect-in-api-v1-retrieval-process-webcnnvd
- https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774enisa_euvd
- https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mwenisa_euvd
- https://www.vulncheck.com/advisories/open-webui-server-side-request-forgery-via-location-redirect-in-api-v1-retrieval-process-webenisa_euvd
- https://github.com/open-webui/open-webui/commit/02238d3113e966c353fce18f1b65117380896774nvd
- https://github.com/open-webui/open-webui/security/advisories/GHSA-82r6-c5jm-f3mwnvd
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