{"id":"CVE-2026-85391","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-85391","generatedAt":"2026-10-28T02:20:14.983Z","title":"Peppermint through 0.5.5 contains a hardcoded JWT signing secret in docker-compose.yml that allows unauthenticated attackers to forge session tokens for any account.","description":"Peppermint through 0.5.5 contains a hardcoded JWT signing secret in docker-compose.yml that allows unauthenticated attackers to forge session tokens for any account. Attackers can use the published secret to mint valid tokens for arbitrary user IDs and access protected endpoints without credentials.","published":"2026-09-03T19:17:31.000Z","lastModified":"2026-09-09T20:20:22.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":9.3,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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-798"],"affected":[],"epss":{"score":0.00641,"percentile":0.50433,"date":"2026-10-26","history":[]},"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 (0.64%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/Peppermint-Lab/peppermint","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/lib/jwt.ts","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/docker-compose.yml","source":"disclosure@vulncheck.com"},{"url":"https://github.com/Peppermint-Lab/peppermint/issues/528","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/peppermint-through-0.5.5-use-of-hard-coded-jwt-signing-secret-in-docker-compose-yml","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-85391","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."}