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CVE-2026-43983

Pocket-id Pocket Id broken access control

8.1 HIGHPublic exploitEPSS 0.36%
  1. Published12 May 2026

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.

CVSS 3.1 breakdown

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

Affected products

Pocket-id Pocket Id< 2.6.0

Remediation

Fixed in
Pocket-id Pocket Id≥ 2.6.0

References

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Frequently asked

Is CVE-2026-43983 being actively exploited?

CVE-2026-43983 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.36%.

How severe is CVE-2026-43983?

CVE-2026-43983 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 0.36% probability of exploitation.

Which products are affected by CVE-2026-43983?

Affected products include Pocket-id Pocket Id.

How do I fix CVE-2026-43983?

Upgrade affected software to a fixed version, for example Pocket-id Pocket Id 2.6.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-43983 against the real software inventory on every managed device, as each hourly inventory arrives. 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.