CVE-2026-85391

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.

Scoring

Severity
CRITICAL
CVSS base score
9.8
CVSS 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
EPSS probability
0.35%
CWE
CWE-798
Published
2026-09-03
Last modified
2026-09-03

Affected products

Weakness type

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