CVE-2023-48306

Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Server and starting in version 22.0.0 and prior to versions 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 of Nextcloud Enterprise Server, the DNS pin middleware was vulnerable to DNS rebinding allowing an attacker to perform SSRF as a final result. Nextcloud Server 25.0.11, 26.0.6, and 27.1.0 and Nextcloud Enterprise Server 22.2.10.16, 23.0.12.11, 24.0.12.7, 25.0.11, 26.0.6, and 27.1.0 contain patches for this issue. No known workarounds are available.

• CWE-918
• CWE-918

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8f69-f9jg-4x3vVendor Advisory
• https://github.com/nextcloud/server/pull/40234Exploit, Issue Tracking, Patch
• https://hackerone.com/reports/2115212Permissions Required
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8f69-f9jg-4x3vVendor Advisory
• https://github.com/nextcloud/server/pull/40234Exploit, Issue Tracking, Patch
• https://hackerone.com/reports/2115212Permissions Required

Published

Nov 21, 2023

Last Modified

Jun 17, 2026

Status

Modified

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