How severe is CVE-2024-21632?

CVE-2024-21632 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2024-21632 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21632?

CVE-2024-21632 affects Recognizeapp Omniauth. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21632?

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-2024-21632 have an EU (EUVD) identifier?

Yes. CVE-2024-21632 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0260.

When was CVE-2024-21632 published?

CVE-2024-21632 was published on 2024-01-02 and last updated on 2026-06-17.

CVE-2024-21632

CVE-2024-21632 is a high-severity vulnerability in Recognizeapp Omniauth with a CVSS 3.x base score of 8.6. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0260
Weakness: CWE-287
Affected product: Recognizeapp Omniauth
Published: 2024-01-02
Last modified: 2026-06-17

Description

omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.

Frequently asked questions

What is CVE-2024-21632?: omniauth-microsoft_graph provides an Omniauth strategy for the Microsoft Graph API. Prior to versions 2.0.0, the implementation did not validate the legitimacy of the `email` attribute of the user nor did it give/document an option to do so, making it susceptible to nOAuth misconfiguration in cases when the `email` is used as a trusted user identifier. This could lead to account takeover. Version 2.0.0 contains a fix for this issue.
How severe is CVE-2024-21632?: CVE-2024-21632 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2024-21632 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21632?: CVE-2024-21632 affects Recognizeapp Omniauth. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21632?: 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-2024-21632 have an EU (EUVD) identifier?: Yes. CVE-2024-21632 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0260.
When was CVE-2024-21632 published?: CVE-2024-21632 was published on 2024-01-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:recognizeapp:omniauth\:\:microsoftgraph:*:*:*:*:*:ruby:*:*

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