CVE-2026-71206
8.3 HIGHpublic exploit availablePublished 2026-08-05 · Updated 2026-08-10
AI risk analysis
- Summary
- The flaw allows attackers to manipulate JWT tokens and gain unauthorized access to user accounts without revalidating them from the database.
- Exploitability
- Exploitation requires knowledge of JWT token manipulation but does not need user interaction or elevated privileges.
- Blast radius
- If exploited, it could lead to full account takeover for affected users, compromising sensitive data and potentially the entire application's security.
- Prioritized remediation
- Implement proper account validation by re-fetching the account from the database before using claims.Account object.
auth-bypassjwtsecurity
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
Shiori's CheckToken function (internal/domains/auth.go) validates only the JWT's HMAC signature and returns the embedded claims.Account object unmodified, never re-fetching the account from the database. No session store or token-revocation mechanism exists in the codebase.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weaknesses
CWE-613
Public exploit & PoC references
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
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