UpHeron
All vulnerabilities

Servers and applications

CVE-2020-8138

A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.

Severity
Medium 6.5
Published
20 Mar 2020
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
15.0.14, 16.0.7, 17.0.2
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • Every version before 15.0.14
  • From 16.0.0 before 16.0.7
  • From 17.0.0 before 17.0.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-8138
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-8138