{"id":"CVE-2026-107177","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-107177","generatedAt":"2026-10-28T01:11:54.998Z","title":"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'.","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.","published":"2026-10-07T13:17:21.000Z","lastModified":"2026-10-07T18:17:18.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":7.4,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-1394"],"affected":[],"epss":{"score":0.00316,"percentile":0.24301,"date":"2026-10-26","history":[{"date":"2026-10-08","score":0.00316,"percentile":0.22497}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-07T13:17:21.000Z","detail":{"score":"7.4","severity":"HIGH","publishedAt":"2026-10-07T13:17:20.827Z"},"summary":"New CVE, high severity (CVSS 7.4)."}],"references":[{"url":"https://github.com/ExpressGateway/express-gateway","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/config/system.config.yml#L15-L22","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/services/utils.js#L18-L28","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ExpressGateway/express-gateway/issues/1078","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/express-gateway-through-1.16.11-hardcoded-default-cipherkey-exposes-oauth-tokens","source":"disclosure@vulncheck.com"},{"url":"https://github.com/ExpressGateway/express-gateway/issues/1078","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-107177","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}