CVE-2026-107177
Medium
Description
Express Gateway through 1.16.11 contains a hardcoded cryptographic key vulnerability that allows attackers with datastore access to decrypt stored OAuth 2.0 token secrets via the default crypto.cipherKey 'sensitiveKey'. Attackers who can read Redis can decrypt tokenEncrypted values and combine them with stored token IDs to obtain valid bearer tokens for any user.
SeverityMedium
CVSS5.9
Exploit probability—
ProductExpressgateway Express-gateway
PublishedOct 7, 2026
First seenOct 7, 2026
Weakness typeCWE-1394CWE-1394
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ExpressGateway express-gateway | v ≤ 1.16.11 | — |
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