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TI-2026-33545 Aliases CVE-2026-45810

Nextcloud: Propfind requests for file comments allowed to load comments for other files

Priority LOW 30CWE-639Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.12, and 32.0.0 to before 32.0.3, a missing check of a relation allowed authenticated users with access to any file comment, to read the content of all comments. It is recommended that the Nextcloud Server is upgraded to 31.0.12 or 32.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 21.0.9.20, 22.2.10.35, 23.0.12.31, 24.0.12.30, 25.0.13.25, 26.0.13.22, 27.1.11.22, 28.0.14.13, 29.0.16.10, 30.0.17.5, 31.0.12 or 32.0.3

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00252 16th percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 31.0.12, 32.0.3

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-advisories31.0.0 to before 31.0.12; 32.0.0 to before 32.0.331.0.12, 32.0.3Patch availableCNA
  • security-advisories Vendornextcloud Affected 31.0.0 to before 31.0.12; 32.0.0 to before 32.0.3 Fixed in 31.0.12, 32.0.3 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:*31.0.0 to before 31.0.12; 32.0.0 to before 32.0.3Vulnerablenextcloud
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:*21.0.0 to before 21.0.9.20; 22.0.0 to before 22.2.10.35; 23.0.0 to before 23.0.12.31; 24.0.0 to before 24.0.12.30; 25.0.0 to before 25.0.13.25; 26.0.0 to before 26.0.13.22; 27.0.0 to before 27.1.11.22; 28.0.0 to before 28.0.14.13; 29.0.0 to before 29.0.16.10; 30.0.0 to before 30.0.17.5; 31.0.0 to before 31.0.12; 32.0.0 to before 32.0.3Vulnerablenextcloud
  • cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* Versions 31.0.0 to before 31.0.12; 32.0.0 to before 32.0.3 Vulnerable ·nextcloud
  • cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* Versions 21.0.0 to before 21.0.9.20; 22.0.0 to before 22.2.10.35; 23.0.0 to before 23.0.12.31; 24.0.0 to before 24.0.12.30; 25.0.0 to before 25.0.13.25; 26.0.0 to before 26.0.13.22; 27.0.0 to before 27.1.11.22; 28.0.0 to before 28.0.14.13; 29.0.0 to before 29.0.16.10; 30.0.0 to before 30.0.17.5; 31.0.0 to before 31.0.12; 32.0.0 to before 32.0.3 Vulnerable ·nextcloud

Remediation

  • Fix · CNA security-advisories (nextcloud) Fixed in 31.0.12, 32.0.3

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-2026-45810

References

Patch 1

Advisory 1

Other 1

  • TI-2023-20855 Users can delete external storage mount points CVSS 3.1HIGH 7.7
  • TI-2023-11091 Nextcloud download permissions can be changed by resharer CVSS 3.1HIGH 7.5
  • TI-2023-10624 Nextcloud Server vulnerable to SSRF via filter bypass due to lax checking on IPs CVSS 3.1MEDIUM 5.3
  • TI-2025-37238 Cross-site scripting in Nextcloud CVSS 3.1MEDIUM 6.4
  • TI-2023-11086 nextcloud vulnerable to Uncontrolled Resource Consumption CVSS 3.1MEDIUM 6.5
  • TI-2022-18738 Exception logging in Sharepoint app reveals clear-text connection details CVSS 3.1MEDIUM 6.5
See all 188 →

Sources

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