Pocket ID up to 2.9.x OIDC Token Validation oidc_service.go createTokenFromClientCredentials resource input validation

Summaryinfo

A vulnerability, which was classified as critical, was found in Pocket ID up to 2.9.x. This impacts the function createTokenFromClientCredentials of the file backend/internal/service/oidc_service.go of the component OIDC Token Validation. The manipulation of the argument resource results in input validation. This vulnerability is identified as CVE-2026-62662. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Pocket ID up to 2.9.x. It has been classified as critical. Affected is the function createTokenFromClientCredentials of the file backend/internal/service/oidc_service.go of the component OIDC Token Validation. The manipulation of the argument resource with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to services. From 1.11.0 until 2.10.0, createTokenFromClientCredentials in backend/internal/service/oidc_service.go accepts the client-controlled resource parameter and embeds it directly in the access token aud claim without validating that the audience is registered or that the requesting client may access it. Any authenticated OIDC client can therefore obtain a Pocket ID-signed token naming another client or an arbitrary audience. The /api/oidc/introspect endpoint cannot distinguish the unauthorized token because it treats a token as active when the introspecting client's identifier matches the attacker-selected audience. In deployments where resource servers trust Pocket ID access tokens for service-to-service authorization, this bypasses audience-based access controls and can permit unauthorized data access or actions; deployments that do not use these tokens for resource-server authorization have no immediate exploitable impact. This issue is fixed in version 2.10.0.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-62662 since 07/14/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit.

Upgrading to version 2.10.0 eliminates this vulnerability.

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Productinfo

Name

• Pocket ID

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9

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CPE 2.2info

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• 🔒
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