CVE-2026-90452

Requests from the reverse proxy to the identity-provider service for token discovery, introspection, and credential exchange do not verify the identity provider's server certificate. An attacker positioned on the network path between the proxy and the identity provider could impersonate the identity provider and issue forged authentication tokens accepted by the deployment.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-254-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01

Configurations

No configuration.

History

02 Oct 2026, 21:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
References		() https://www.cisa.gov/news-events/ics-advisories/icsa-26-254-01 -

Information

Published : 2026-09-11 22:16

Updated : 2026-10-02 21:16

NVD link : CVE-2026-90452

Mitre link : CVE-2026-90452

CVE.ORG link : CVE-2026-90452

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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