CVE-2026-56399 PUBLISHED

Open WebUI - Server-Side Request Forgery via Location Redirect in /api/v1/retrieval/process/web

Assigner: VulnCheck
Reserved: 21.06.2026 Published: 30.06.2026 Updated: 01.07.2026

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 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	Low
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVSS Score: 5

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	open-webui
Product	open-webui
Versions	Default: unaffected affected from 0 to 0.6.27 (excl.) Version 0.6.27 is unaffected

CVE-2026-56399 PUBLISHED

Open WebUI - Server-Side Request Forgery via Location Redirect in /api/v1/retrieval/process/web

Metrics

Product Status

Credits

References

Problem Types