What’s Vulnerable › Vulnerabilities

CVE-2023-32074: Nextcloud user_oidc app is missing brute force protection

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-25 · updated 2026-06-17
• Weakness: CWE-307

Description

user_oidc app is an OpenID Connect user backend for Nextcloud. Authentication can be broken/bypassed in user_oidc app. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.2

Affected products

• nextcloud User Oidc: before 1.3.2 — fixed in 1.3.2

How to fix

Upgrade to a fixed version: nextcloud User Oidc 1.3.2. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x8mc-84wj-rf34
• https://github.com/nextcloud/user_oidc/pull/615
• https://hackerone.com/reports/1954711
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x8mc-84wj-rf34
• https://github.com/nextcloud/user_oidc/pull/615
• https://hackerone.com/reports/1954711

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