Incorrect Authorization Affecting github.com/pocket-id/pocket-id/backend/internal/service package, versions <2.4.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMPOCKETIDPOCKETIDBACKENDINTERNALSERVICE-15445089
- published10 Mar 2026
- disclosed9 Mar 2026
- creditKen Watanabe
Introduced: 9 Mar 2026
CVE-2026-28513 (opens in a new tab)How to fix?
Upgrade github.com/pocket-id/pocket-id/backend/internal/service to version 2.4.0 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization in the OIDC token exchange process. An attacker can obtain tokens for unauthorized clients or reuse expired authorization codes by submitting a valid authorization code with a different client ID or by using an expired code with the correct client ID. This is only exploitable if the environment is configured with APP_ENV=test and BUILD_TAGS=e2etest, and the user has authorized multiple OIDC clients.