CVE-2026-44515: CWE-918: Server-Side Request Forgery (SSRF) in nextcloud news
Nextcloud News is an RSS/Atom feed reader. Prior to 28.3.0-beta.1, Nextcloud News allows authenticated users to add feeds by providing a feed URL (via the web interface or the API). In affected versions, an authenticated attacker could provide a URL pointing to internal/private IP ranges or localhost, causing the Nextcloud server to perform server-side HTTP requests to attacker-controlled destinations, but not relaying the result. This enables blind SSRF, which can be used to scan or probe internal network services that are reachable from the Nextcloud server. This vulnerability is fixed in 28.3.0-beta.1.
AI Analysis
Technical Summary
Nextcloud News, an RSS/Atom feed reader, allows authenticated users in versions before 28.3.0-beta.1 to add feed URLs that can point to internal or localhost IP ranges. This causes the Nextcloud server to perform server-side HTTP requests to those addresses without returning the response, enabling blind SSRF. This can be leveraged to scan or probe internal network services reachable from the server. The vulnerability is identified as CWE-918 and has a CVSS 4.0 score of 2.3, indicating low severity. The issue is resolved in version 28.3.0-beta.1.
Potential Impact
An authenticated attacker can use this SSRF vulnerability to make the Nextcloud server send HTTP requests to internal or private IP addresses, potentially allowing reconnaissance of internal network services. However, the server does not relay response data, limiting the attack to blind SSRF. There are no known exploits in the wild. The impact is rated low severity.
Mitigation Recommendations
Upgrade Nextcloud News to version 28.3.0-beta.1 or later, where this SSRF vulnerability is fixed. Since the vendor advisory does not specify an official patch or temporary fix beyond this version update, applying this upgrade is the recommended remediation. Patch status is confirmed by the version fix information.
CVE-2026-44515: CWE-918: Server-Side Request Forgery (SSRF) in nextcloud news
Description
Nextcloud News is an RSS/Atom feed reader. Prior to 28.3.0-beta.1, Nextcloud News allows authenticated users to add feeds by providing a feed URL (via the web interface or the API). In affected versions, an authenticated attacker could provide a URL pointing to internal/private IP ranges or localhost, causing the Nextcloud server to perform server-side HTTP requests to attacker-controlled destinations, but not relaying the result. This enables blind SSRF, which can be used to scan or probe internal network services that are reachable from the Nextcloud server. This vulnerability is fixed in 28.3.0-beta.1.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Nextcloud News, an RSS/Atom feed reader, allows authenticated users in versions before 28.3.0-beta.1 to add feed URLs that can point to internal or localhost IP ranges. This causes the Nextcloud server to perform server-side HTTP requests to those addresses without returning the response, enabling blind SSRF. This can be leveraged to scan or probe internal network services reachable from the server. The vulnerability is identified as CWE-918 and has a CVSS 4.0 score of 2.3, indicating low severity. The issue is resolved in version 28.3.0-beta.1.
Potential Impact
An authenticated attacker can use this SSRF vulnerability to make the Nextcloud server send HTTP requests to internal or private IP addresses, potentially allowing reconnaissance of internal network services. However, the server does not relay response data, limiting the attack to blind SSRF. There are no known exploits in the wild. The impact is rated low severity.
Mitigation Recommendations
Upgrade Nextcloud News to version 28.3.0-beta.1 or later, where this SSRF vulnerability is fixed. Since the vendor advisory does not specify an official patch or temporary fix beyond this version update, applying this upgrade is the recommended remediation. Patch status is confirmed by the version fix information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-06T18:28:20.887Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a05fd9fec166c07b0f93186
Added to database: 5/14/2026, 4:51:43 PM
Last enriched: 5/14/2026, 5:08:06 PM
Last updated: 5/15/2026, 6:31:20 AM
Views: 9
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