CVE-2026-43983

Pocket ID: OIDC refresh token flow bypasses authorization revocation, account disabling, and group restrictions

State: Published
Severity: 8.5 High
Published: May 12, 2026
Updated: May 13, 2026
Reserved: May 4, 2026

Description

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. Prior to 2.6.0, The createTokenFromRefreshToken function (oidc_service.go) validates the refresh token's cryptographic integrity but does not re-validate the user's current authorization state before issuing new tokens. This allows (1) the client to refresh the token indefinitely after authorization revocation, (2) the refresh token to continue to work after the account is disabled, and (3) the token to work after the client is removed from the group. This vulnerability is fixed in 2.6.0.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-285 Improper Authorization
CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
pocket-idpocket-id	< 2.6.0Affected

References

https://github.com/pocket-id/pocket-id/security/advisories/GHSA-w6p7-2fxx-4f44

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