Vulnerability · Published May 12, 2026 · Assigned by GitHub_M
CVE-2026-43983Pocket ID: OIDC refresh token flow bypasses authorization revocation, account disabling, and group restrictions
High 8.5
In plain English
A high-severity security flaw in pocket-id from pocket-id. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/pocket-id/pocket-id/backend | 0.0.0-20260419162744-978ac87deffe | GHSA-w6p7-2fxx-4f44 |
| Go | github.com/pocket-id/pocket-id/backend | 0.0.0-20260419162744-978ac87deffe | GO-2026-6119 |
Affected products (as reported)
Weakness: CWE-285, CWE-613 · Vector: 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
References
- https://github.com/pocket-id/pocket-id/security/advisories/GHSA-w6p7-2fxx-4f44 x_refsource_CONFIRM