BIT-NEXTCLOUD-2026-77164

Circles' remote-instance signature verification fetches the attacker-supplied keyId URL before trust in the remote instance is established, and explicitly allows local/private addresses for this request, bypassing Nextcloud's core SSRF protections. The public, unauthenticated endpoints POST...

PT-2026-98999

Circles' remote-instance signature verification fetches the attacker-supplied keyId URL before trust in the remote instance is established, and explicitly allows local/private addresses for this request, bypassing Nextcloud's core SSRF protections. The public, unauthenticated endpoints POST...

SUSE CVE-2026-77164

Circles' remote-instance signature verification fetches the attacker-supplied keyId URL before trust in the remote instance is established, and explicitly allows local/private addresses for this request, bypassing Nextcloud's core SSRF protections. The public, unauthenticated endpoints POST...

PT-2026-95208

Name of the Vulnerable Software and Affected Versions Nextcloud affected versions not specified Description Remote-instance signature verification in Circles fetches the keyId URL provided by an attacker before trust is established. This process explicitly allows local or private addresses,...

CVE-2026-77164: Server-Side Request Forgery (SSRF)

Circles' remote-instance signature verification fetches the attacker-supplied keyId URL before trust in the remote instance is established, and explicitly allows local/private addresses for this request, bypassing Nextcloud's core SSRF protections. The public, unauthenticated endpoints POST...