CVE-2026-107177Express Gateway through 1.16.11 Hardcoded Default cipherKey Exposes OAuth Tokens
Updated under an hour ago ()
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It affects ExpressGateway express-gateway. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-1394
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ExpressGateway express-gateway expressgateway:express_gateway (from the name) | through 1.16.11 | CNA record |
References
- https://github.com/ExpressGateway/express-gateway/issues/1078issue-tracking
- https://github.com/ExpressGateway/express-gatewayproduct
- https://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/config/system.config.yml#L15-L22technical-description
- https://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/services/utils.js#L18-L28technical-description
- https://www.vulncheck.com/advisories/express-gateway-through-1.16.11-hardcoded-default-cipherkey-exposes-oauth-tokensthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.