CVE-2026-71206

high

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. Deleting an account or demoting it from owner to a regular role has no effect on tokens already issued to that account — a deleted or demoted owner's token continues authenticating with its original owner-level privileges until natural expiry, which can be up to 30 days with 'remember me' enabled.

References

https://github.com/go-shiori/shiori

Details

Source: Mitre, NVD

Published: 2026-08-05

Updated: 2026-08-05

Risk Information

CVSS v2

Base Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:P

Severity: High

CVSS v3

Base Score: 8.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Severity: High

EPSS

EPSS: 0.00215