How severe is CVE-2026-28512?

CVE-2026-28512 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-28512 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28512?

CVE-2026-28512 affects Pocket-id Pocket Id. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28512?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-28512 have an EU (EUVD) identifier?

Yes. CVE-2026-28512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10406.

When was CVE-2026-28512 published?

CVE-2026-28512 was published on 2026-03-10 and last updated on 2026-06-17.

CVE-2026-28512

CVE-2026-28512 is a high-severity vulnerability in Pocket-id Pocket Id with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10406
Weakness: CWE-601
Affected product: Pocket-id Pocket Id
Published: 2026-03-10
Last modified: 2026-06-17

Description

Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.

Frequently asked questions

What is CVE-2026-28512?: Pocket ID is an OIDC provider that allows users to authenticate with their passkeys to your services. From 2.0.0 to before 2.4.0, a flaw in callback URL validation allowed crafted redirect_uri values containing URL userinfo (@) to bypass legitimate callback pattern checks. If an attacker can trick a user into opening a malicious authorization link, the authorization code may be redirected to an attacker-controlled host. This vulnerability is fixed in 2.4.0.
How severe is CVE-2026-28512?: CVE-2026-28512 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-28512 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28512?: CVE-2026-28512 affects Pocket-id Pocket Id. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28512?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-28512 have an EU (EUVD) identifier?: Yes. CVE-2026-28512 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10406.
When was CVE-2026-28512 published?: CVE-2026-28512 was published on 2026-03-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pocket-id:pocket_id:*:*:*:*:*:*:*:*

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