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CVE-2026-85391— Peppermint through 0.5.5 Use of Hard-coded JWT Signing Secret in docker-compose.yml

Quick assessment

Affected
Peppermint-Lab peppermint
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

翻译： Peppermint 0.5.5 及之前版本在 中硬编码了 JWT 签名密钥，使得未认证的 attackers（攻击者）能够伪造任意账户的会话令牌。攻击者可以利用该公开密钥为任意用户 ID 生成有效的令牌，从而无需凭证即可访问受保护的端点。 术语说明与润色： "unauthenticated attackers" 译为“未认证的 attackers”或更自然地说“未认证的攻击者”。 "mint valid tokens" 中的 "mint" 在密码学语境下通常译为“签发”或“铸造”，这里用“生成”或“签发”

CVSS 9.8 · Critical

Affected Version Matrix 1

VendorProduct Version RangeStatus
Peppermint-Lab peppermint ≤ 0.5.5 affected
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I. Basic Information for CVE-2026-85391

Vulnerability Information
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Vulnerability Title
Peppermint through 0.5.5 Use of Hard-coded JWT Signing Secret in docker-compose.yml
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的凭证
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Peppermint-Lab peppermint 0 ~ 0.5.5 -

II. Public POCs for CVE-2026-85391

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III. Intelligence Information for CVE-2026-85391

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Patches & Fixes for CVE-2026-85391 (1)

Vendor Advisories for CVE-2026-85391 (1)

Other References for CVE-2026-85391 (2)

IV. Related Vulnerabilities

Same product: peppermint
Same vendor: Peppermint-Lab
Same weakness: CWE-798

V. Comments for CVE-2026-85391

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