What’s Vulnerable › Vulnerabilities

CVE-2024-52519: Nextcloud Server's OAuth2 client secrets were stored in a recoverable way

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-15 · updated 2026-06-17
• Weakness: CWE-922

Description

Nextcloud Server is a self hosted personal cloud system. The OAuth2 client secrets were stored in a recoverable way, so that an attacker that got access to a backup of the database and the Nextcloud config file, would be able to decrypt them. It is recommended that the Nextcloud Server is upgraded to 28.0.10 or 29.0.7 and Nextcloud Enterprise Server is upgraded to 27.1.11.8, 28.0.10 or 29.0.7.

Affected products

• Nextcloud Server: from 27.0.0 before 27.1.11.8; from 28.0.0 before 28.0.10; from 29.0.0 before 29.0.7 — fixed in 27.1.11.8, 28.0.10, 29.0.7

How to fix

Upgrade to a fixed version: Nextcloud Server 27.1.11.8, 28.0.10, 29.0.7. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fvpc-8hq6-jgq2
• https://github.com/nextcloud/server/commit/09b8aea8f6783514bffe00df6abbf9fa542faac5
• https://github.com/nextcloud/server/pull/47635

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