# Nextcloud Enterprise Server vulnerabilities

Source: https://junglewise.ai/threats/technologies/nextcloud-enterprise-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/nextcloud-enterprise-server.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in Nextcloud Enterprise Server: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-45810, was published on 1 June 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 7 (0 critical, 0 exploited in the wild)

## About Nextcloud Enterprise Server

A self-hosted content collaboration platform designed for enterprise environments.

## Latest Nextcloud Enterprise Server vulnerabilities

- [CVE-2026-45810: Nextcloud Server authorization bypass in file comments](https://junglewise.ai/threats/cve-2026-45810-nextcloud-server-authorization-bypass-in-file-comments) (medium, CVSS 6.8, published 1 Jun 2026)
- [CVE-2026-45691: Nextcloud Server 2FA bypass in DAV endpoints via session cookie reuse](https://junglewise.ai/threats/cve-2026-45691-nextcloud-server-2fa-bypass-in-dav-endpoints-via-session-cookie) (medium, CVSS 5.9, published 1 Jun 2026)
- [CVE-2026-45690: Nextcloud Server 2FA bypass via session token replay](https://junglewise.ai/threats/cve-2026-45690-nextcloud-server-2fa-bypass-via-session-token-replay) (medium, CVSS 5.9, published 1 Jun 2026)
- [CVE-2026-45285: Nextcloud Server hidden public link creation in Teams sharing](https://junglewise.ai/threats/cve-2026-45285-nextcloud-server-hidden-public-link-creation-in-teams-sharing) (medium, CVSS 6.4, published 1 Jun 2026)
- [CVE-2026-45283: Nextcloud Server improper authentication in files_lock app](https://junglewise.ai/threats/cve-2026-45283-nextcloud-server-improper-authentication-in-files-lock-app) (medium, CVSS 6.3, published 1 Jun 2026)
- [CVE-2026-45282: Nextcloud Server access control bypass in Text attachments](https://junglewise.ai/threats/cve-2026-45282-nextcloud-server-access-control-bypass-in-text-attachments) (medium, CVSS 6.5, published 1 Jun 2026)
- [CVE-2026-45281: Nextcloud Server authorization bypass in calendar delegation](https://junglewise.ai/threats/cve-2026-45281-nextcloud-server-authorization-bypass-in-calendar-delegation) (high, CVSS 8.1, published 1 Jun 2026)

## Most severe Nextcloud Enterprise Server vulnerabilities

- [CVE-2026-45281: Nextcloud Server authorization bypass in calendar delegation](https://junglewise.ai/threats/cve-2026-45281-nextcloud-server-authorization-bypass-in-calendar-delegation) (high, CVSS 8.1, published 1 Jun 2026)
- [CVE-2026-45810: Nextcloud Server authorization bypass in file comments](https://junglewise.ai/threats/cve-2026-45810-nextcloud-server-authorization-bypass-in-file-comments) (medium, CVSS 6.8, published 1 Jun 2026)
- [CVE-2026-45282: Nextcloud Server access control bypass in Text attachments](https://junglewise.ai/threats/cve-2026-45282-nextcloud-server-access-control-bypass-in-text-attachments) (medium, CVSS 6.5, published 1 Jun 2026)
- [CVE-2026-45285: Nextcloud Server hidden public link creation in Teams sharing](https://junglewise.ai/threats/cve-2026-45285-nextcloud-server-hidden-public-link-creation-in-teams-sharing) (medium, CVSS 6.4, published 1 Jun 2026)
- [CVE-2026-45283: Nextcloud Server improper authentication in files_lock app](https://junglewise.ai/threats/cve-2026-45283-nextcloud-server-improper-authentication-in-files-lock-app) (medium, CVSS 6.3, published 1 Jun 2026)
- [CVE-2026-45691: Nextcloud Server 2FA bypass in DAV endpoints via session cookie reuse](https://junglewise.ai/threats/cve-2026-45691-nextcloud-server-2fa-bypass-in-dav-endpoints-via-session-cookie) (medium, CVSS 5.9, published 1 Jun 2026)
- [CVE-2026-45690: Nextcloud Server 2FA bypass via session token replay](https://junglewise.ai/threats/cve-2026-45690-nextcloud-server-2fa-bypass-via-session-token-replay) (medium, CVSS 5.9, published 1 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Nextcloud technologies

- [Nextcloud Server](https://junglewise.ai/threats/technologies/nextcloud-server): 14 vulnerabilities
- [Nextcloud Tables](https://junglewise.ai/threats/technologies/tables): 5 vulnerabilities
- [Nextcloud Approval](https://junglewise.ai/threats/technologies/approval): 4 vulnerabilities
- [Nextcloud Calendar](https://junglewise.ai/threats/technologies/calendar): 4 vulnerabilities
- [Nextcloud Forms](https://junglewise.ai/threats/technologies/forms): 4 vulnerabilities
- [Nextcloud User OIDC](https://junglewise.ai/threats/technologies/user-oidc): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Nextcloud Enterprise Server vulnerabilities", https://junglewise.ai/threats/technologies/nextcloud-enterprise-server, 9 November 2026.