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CVE-2026-28513

Pocket-id Pocket Id broken access control

8.5 HIGHPublic exploitEPSS 0.31%
  1. Published10 Mar 2026

Description

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. Prior to 2.4.0, the OIDC token endpoint rejects an authorization code only when both the client ID is wrong and the code is expired. This allows cross-client code exchange and expired code reuse. This vulnerability is fixed in 2.4.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Affected products

Pocket-id Pocket Id< 2.4.0

Remediation

Fixed in
Pocket-id Pocket Id≥ 2.4.0

References

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Frequently asked

Is CVE-2026-28513 being actively exploited?

CVE-2026-28513 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.31%.

How severe is CVE-2026-28513?

CVE-2026-28513 has a CVSS 3.1 base score of 8.5, rated high. EPSS estimates a 0.31% probability of exploitation.

Which products are affected by CVE-2026-28513?

Affected products include Pocket-id Pocket Id.

How do I fix CVE-2026-28513?

Upgrade affected software to a fixed version, for example Pocket-id Pocket Id 2.4.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-28513 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.