Read the docs
TI-2022-18590 Aliases CVE-2022-39211

Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server

Priority LOW 26CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Nextcloud server is an open source personal cloud platform. In affected versions it was found that locally running webservices can be found and requested erroneously. It is recommended that the Nextcloud Server is upgraded to 23.0.8 or 24.0.4. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.10.4, 23.0.8 or 24.0.4. There are no known workarounds for this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00961 61st percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 23.0.8, 24.0.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nextcloudsecurity-advisoriesbefore 23.0.8; 24.0.0 to before 24.0.423.0.8, 24.0.4Patch availableCNA
  • security-advisories Vendornextcloud Affected before 23.0.8; 24.0.0 to before 24.0.4 Fixed in 23.0.8, 24.0.4 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:nextcloud_enterprise_server:*:*:*:*:*:*:*:*before 22.2.10.4; 23.0.0 to before 23.0.8; 24.0.0 to before 24.0.4Vulnerablenextcloud
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*before 23.0.8; 24.0.0 to before 24.0.4Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:nextcloud_enterprise_server:*:*:*:*:*:*:*:* Versions before 22.2.10.4; 23.0.0 to before 23.0.8; 24.0.0 to before 24.0.4 Vulnerable ·nextcloud
  • cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* Versions before 23.0.8; 24.0.0 to before 24.0.4 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 23.0.8, 24.0.4

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-39211

References

Patch 2

Advisory 1

  • TI-2022-18738 Exception logging in Sharepoint app reveals clear-text connection details CVSS 3.1MEDIUM 6.5
  • TI-2022-16497 Authentication headers exposed on by Nextcloud Server CVSS 3.1HIGH 7.5
  • TI-2022-18721 Missing length validation of user displayname in nextcloud server CVSS 3.1MEDIUM 6.5
  • TI-2022-18705 Profile of disabled user stays accessible CVSS 3.1MEDIUM 5.3
  • TI-2022-18706 Database resource exhaustion for logged-in users via sharee recommendations with circles CVSS 3.1MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences