EUVD Vulnerability Catalog
EUVD-2026-70668
Severity: CRITICAL
Base Score: 9.3
CVSS Version: 4.0
Vulnerability 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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: 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
▪
Attack Vector (AV): Network
▪
Attack Complexity (AC): Low
▪
Attack Requirements (AT): None
▪
Privileges Required (PR): None
▪
User Interaction (UI): None
▪
Vulnerability Confidentiality Impact (VC): High
▪
Vulnerability Integrity Impact (VI): High
▪
Vulnerability Availability Impact (VA): High
▪
Subsequent Confidentiality Impact (SC): None
▪
Subsequent Integrity Impact (SI): None
▪
Subsequent Availability Impact (SA): None
Affected Vendors & Systems
Vendor
Peppermint-Lab
References & Advisory Links
- https://github.com/Peppermint-Lab/peppermint/issues/528
- https://github.com/Peppermint-Lab/peppermint
- https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/docker-compose.yml
- https://github.com/Peppermint-Lab/peppermint/blob/0.5.5/apps/api/src/lib/jwt.ts
- https://www.vulncheck.com/advisories/peppermint-through-0.5.5-use-of-hard-coded-jwt-signing-secret-in-docker-compose-yml
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
VulnCheck
EPSS Probability
0
Known Aliases
CVE-2026-85391
Published On
2026-09-03
Last Updated
2026-09-03