How severe is CVE-2024-37312?

CVE-2024-37312 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2024-37312 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-37312?

CVE-2024-37312 affects Nextcloud User Oidc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-37312?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-37312 have an EU (EUVD) identifier?

Yes. CVE-2024-37312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36570.

When was CVE-2024-37312 published?

CVE-2024-37312 was published on 2024-06-14 and last updated on 2026-06-17.

CVE-2024-37312

CVE-2024-37312 is a medium-severity vulnerability in Nextcloud User Oidc with a CVSS 3.x base score of 6.3. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-36570
Weakness: CWE-284
Affected product: Nextcloud User Oidc
Published: 2024-06-14
Last modified: 2026-06-17

Description

user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).

Frequently asked questions

What is CVE-2024-37312?: user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).
How severe is CVE-2024-37312?: CVE-2024-37312 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2024-37312 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-37312?: CVE-2024-37312 affects Nextcloud User Oidc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-37312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-37312 have an EU (EUVD) identifier?: Yes. CVE-2024-37312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-36570.
When was CVE-2024-37312 published?: CVE-2024-37312 was published on 2024-06-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*

More vulnerabilities in Nextcloud User Oidc

CVE-2023-32074 — High (CVSS 8.0): user_oidc app is an OpenID Connect user backend for Nextcloud. Authentication can be broken/bypassed in user_oidc app.…
CVE-2024-37886 — Medium (CVSS 5.4): user_oidc app is an OpenID Connect user backend for Nextcloud. An attacker could potentially trick the app into…
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