nextcloud server vulnerabilities and fixes

Recent CVEs affecting nextcloud server, with upgrade or downgrade steps. 8 tracked.

Also searched as: nextcloudserver.

nextcloud server has 8 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 8. Most recent: 2026-06-01. Highest priority: CVE-2026-45281 (score 34/100).

• CVE-2026-45285 MEDIUM 6.4 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45810 MEDIUM 6.8 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45690 MEDIUM 5.9 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45691 MEDIUM 5.9 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45281 HIGH 8.1 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45282 MEDIUM 6.5 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45283 MEDIUM 6.3 UPGRADE Nextcloud is an open source content collaboration platform
• CVE-2026-45279 MEDIUM 4.4 UPGRADE Nextcloud is an open source content collaboration platform

FAQ

How do I fix nextcloud server vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is nextcloud server being exploited right now?

None of the tracked nextcloud server CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which nextcloud server CVE should I patch first?

CVE-2026-45281 currently ranks highest (34/100): Nextcloud is an open source content collaboration platform.

RSS feed for nextcloud server · ← Back to latest CVEs