Express Gateway through 1.16.11 contains an authentication bypass vulnerability in the OAuth 2.0 refresh_token grant that fails to validate the token secret or issuing client. Attackers with any valid client credentials and the identifier portion of another user's refresh token can obtain that user's access token and impersonate them against oauth2-protected APIs.
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Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Wed, 07 Oct 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Express Gateway through 1.16.11 contains an authentication bypass vulnerability in the OAuth 2.0 refresh_token grant that fails to validate the token secret or issuing client. Attackers with any valid client credentials and the identifier portion of another user's refresh token can obtain that user's access token and impersonate them against oauth2-protected APIs. | |
| Title | Express Gateway through 1.16.11 OAuth 2.0 Refresh Token Validation Bypass | |
| First Time appeared |
Express-gateway
Express-gateway express-gateway Docker Image |
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| Weaknesses | CWE-287 | |
| CPEs | cpe:2.3:a:express-gateway:express-gateway_docker_image:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Express-gateway
Express-gateway express-gateway Docker Image |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-07T12:48:18.499Z
Reserved: 2026-10-07T11:02:13.828Z
Link: CVE-2026-107162
No data.
Status : Received
Published: 2026-10-07T13:17:19.963
Modified: 2026-10-07T13:17:19.963
Link: CVE-2026-107162
No data.
OpenCVE Enrichment
No data.
Weaknesses