CVE-2026-85391: critical vulnerability in Peppermint-Lab peppermint
Peppermint through 0.5.5 Use of Hard-coded JWT Signing Secret in docker-compose.yml
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.6%
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.
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
Affected products
Peppermint-Lab · peppermintRelated CVEs — Peppermint-Lab peppermint
In the same product, most dangerous first.
References
https://github.com/Peppermint-Lab/pepperminthttps://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/lib/jwt.tshttps://github.com/Peppermint-Lab/peppermint/blob/0.5.5/docker-compose.ymlhttps://github.com/Peppermint-Lab/peppermint/issues/528https://www.vulncheck.com/advisories/peppermint-through-0.5.5-use-of-hard-coded-jwt-signing-secret-in-docker-compose-yml