All vulnerabilities
CVE-2026-107177

express-gateway: Express Gateway through 1.16.11 Hardcoded Default cipherKey Exposes OAuth Tokens

ExpressGateway express-gatewayFrameworks
Open in ThreatlineRecord JSON
CVSS
7.4High
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 7 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published7 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 1

  • express-gatewayaffected: all versions through 1.16.11CVE List

References 5