TI-2022-16497 Aliases CVE-2022-36074

Authentication headers exposed on by Nextcloud Server

LOW 36CWE-200Published 2022-09-15 · Updated 2025-04-23

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-200 and CWE-863.

Summary

Nextcloud server is an open source personal cloud product. Affected versions of this package are vulnerable to Information Exposure which fails to strip the Authorization header on HTTP downgrade. This can lead to account access exposure and compromise. It is recommended that the Nextcloud Server is upgraded to 23.0.7 or 24.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.11, 23.0.7 or 24.0.3. There are no known workarounds for this issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00756 55th percentileScored 2026-11-07

Fix Fixed security-advisories (nextcloud): 23.0.7, 24.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
nextcloud	security-advisories	before 23.0.7; 24.0.0 to before 24.0.3	23.0.7, 24.0.3	Patch available	CNA

security-advisories Vendornextcloud Affected before 23.0.7; 24.0.0 to before 24.0.3 Fixed in 23.0.7, 24.0.3 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:nextcloud:nextcloud_enterprise_server::::::::	before 22.2.11; 23.0.0 to before 23.0.7; 24.0.0 to before 24.0.3	Vulnerable	nextcloud
cpe:2.3:a:nextcloud:nextcloud_server::::::::	before 23.0.7; 24.0.0 to before 24.0.3	Vulnerable	nextcloud

cpe:2.3:a:nextcloud:nextcloud_enterprise_server:*:*:*:*:*:*:*:* Versions before 22.2.11; 23.0.0 to before 23.0.7; 24.0.0 to before 24.0.3 Vulnerable ·nextcloud
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* Versions before 23.0.7; 24.0.0 to before 24.0.3 Vulnerable ·nextcloud

Remediation

Fix · CNA security-advisories (nextcloud) Fixed in 23.0.7, 24.0.3

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2022-36074

References

Patch 1

https://github.com/nextcloud/server/pull/32941

Advisory 1

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vqgm-f748-g76v

TI-2022-18738 Exception logging in Sharepoint app reveals clear-text connection details CVSS 3.1MEDIUM 6.5
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-2022-18590 Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server 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