Authentication Token Exposure in OHIF due to Unvalidated URL Parameters
CVE-2026-12473

8.3HIGH

Key Information:

Vendor

Open Health Imaging Foundation (ohif)

Status
Dicom Web Viewer Framework
Vendor
CVE Published:
25 June 2026

What is CVE-2026-12473?

A vulnerability exists in the OHIF Viewer involving two data sources: DICOMWebProxy and DICOMJSON. These components are shipped in a default configuration that improperly fetches URLs without adequate validation. This flaw can lead to the unintentional leakage of an authenticated user's OIDC Bearer token into requests directed at attacker-controlled servers. Although the DICOMweb data sources remain unaffected, the exposed tokens pose a significant risk by potentially allowing unauthorized access to sensitive user data.

Affected Version(s)

DICOM Web Viewer Framework 0

References

https://www.cisa.gov/news-events/ics-advisories/icsma-26-...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Simon Weber and Volker Schönefeld of Machine Spirits UG reported this vulnerability to CISA.
.