CVE-2026-44515 Nextcloud News: Authenticated blind SSRF via feed URL
Authenticated attackers can exploit blind SSRF in Nextcloud News to scan internal network services via malicious feed URLs.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44515?
CVE-2026-44515 is a low-severity server-side request forgery vulnerability in nextcloud news, published on 14 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-44515?
How do I fix CVE-2026-44515?
No fix has been published for CVE-2026-44515 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-44515 being exploited?
There is no known exploitation of CVE-2026-44515 in the wild and no public exploit code.
Sources
Also known as GHSA-jcfr-rmj6-cpfj.