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7.7 High

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to services.

CVE-2026-62662

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/oidcservice.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.

Assessment

CVSS
7.7 (v3.0)
Severity
High
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
4 November 2026
Last updated
4 November 2026
Affected
pocket-id · pocket-id
Assigner
GitHub_M

CVSS vectorCVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N

At the source

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