CVE-2026-77164
Description
A flaw was found in Nextcloud. An unauthenticated remote attacker can exploit a Server-Side Request Forgery (SSRF) vulnerability in the Circles component. By sending a specially crafted request to the public endpoints, the attacker can force the server to make GET requests to internal network addresses. While the response content is not directly disclosed, this allows the attacker to determine the reachability of internal services, potentially aiding further attacks.
Statement
Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.
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