Server-side request forgery in Nextcloud Server
Priority LOW 25CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.
Why it matters now
EPSS 0.01287 70th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Nextcloud Server | 16.0.1 | — | No fix listed | CNA |
- Nextcloud Server Vendor— Affected 16.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* | before 15.0.9; 16.0.0 to before 16.0.2 | Vulnerable | nextcloud |
| cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* | 15.0 sp1 | Vulnerable | openSUSE |
| cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* Versions before 15.0.9; 16.0.0 to before 16.0.2 Vulnerable ·nextcloud
- cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* Versions 15.0 sp1 Vulnerable ·openSUSE
- cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Nextcloud Server — openSUSE-SU-2020:0220
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-11712 Improper input validation in Nextcloud ServerPriority LOW 37
- TI-2019-11720 Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to…Priority LOW 31
- TI-2019-11722 Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's…Priority LOW 28
- Advisory ·
Nextcloud Server — openSUSE-SU-2020:0229
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-11712 Improper input validation in Nextcloud ServerPriority LOW 37
- TI-2019-11720 Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to…Priority LOW 31
- TI-2019-11722 Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's…Priority LOW 28
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8118
- 2026-10-03 Alias added: GHSA-gwpm-3v8h-j4wh
References
Sources
- CVE-2020-8118 · CVE Program
- CVE-2020-8118 · NVD
- FIRST EPSS
- GHSA-gwpm-3v8h-j4wh · GitHub Advisory Database · CC BY 4.0
- CVE-2020-8118 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences