Critical severity9.8NVD Advisory· Published Sep 3, 2026· Updated Sep 3, 2026
CVE-2026-85391
CVE-2026-85391
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.
Affected products
1- Range: <=0.5.5
Patches
Vulnerability mechanics
References
4- github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/lib/jwt.tsnvd
- github.com/Peppermint-Lab/peppermint/blob/0.5.5/docker-compose.ymlnvd
- github.com/Peppermint-Lab/peppermint/issues/528nvd
- www.vulncheck.com/advisories/peppermint-through-0.5.5-use-of-hard-coded-jwt-signing-secret-in-docker-compose-ymlnvd
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