Vulnerability details

CVE-2026-71206

go-shiori shiori

shiori - JWT CheckToken Never Re-Validates Account State, Allowing Stale-Privilege Access After Deletion or Demotion

CVSS 3.1

8.2High

Official 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 scores

Score	Version	Source	Vector
8.2High	3.1	CVEProject cvelistV5 (CNA) (TuranSec)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L`

Affected products

Vendor	Product	Versions	Source
go-shiori	shiori	All	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/go-shiori/shiori third-party-advisory

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Details

Published: 2026-08-05
Last updated: 2026-08-10
State: Published
Assigner (CNA): TuranSec

Exploit prediction (EPSS)

0.37%

Probability of exploitation in 30 days

31.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-613
Insufficient Session Expiration