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Vendor archive

nextcloud CVEs

Beta · best-effort

372 CVEs tagged to vendor nextcloud10 Critical, 50 High, 217 Medium, 93 Low, 2 Unrated.

CVE-2026-45810

Published Jun 1, 2026

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…

CVSS 6.8 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45722

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From versions 0.9.0 to before 0.9.7, and 1.0.0 to before 1.0.2, a missing sanitization in the Tables app allowed a user…

CVSS 7.1 · High
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45691

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, a pre-2FA session cookie (creat…

CVSS 5.9 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45690

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, an authentication bypass vulner…

CVSS 5.9 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45545

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From versions 0.7.0 to before 0.7.7, 0.8.0 to before 0.8.10, 0.9.0 to before 0.9.8, and 1.0.0 to before 1.0.4, an authe…

CVSS 8.2 · High
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45544

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From version 0.8.0 to before version 1.0.4, the view filter criteria is exposed to users with read-only permissions in…

CVSS 4.3 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45543

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From version 4.3.0 to before version 5.2.7, a removed collaborator retains unauthorized read access to uploaded respond…

CVSS 5.3 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45286

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From versions 5.5.13 to before 5.5.17, and 6.2.0 to before 6.2.3, an authenticated user can enumerate users on the same…

CVSS 4.3 · Medium
evidence mentions
4
Buzz score
27.1
Public PoC observed
Vendor/product tagsBeta · best-effort

CVE-2026-45285

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, when a user shares a folder or file with a Nextclou…

CVSS 6.4 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45284

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From version 1.3.6 to before version 8.4.0, an improper check allowed users that where provided by LDAP to still authen…

CVSS 4.6 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45283

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.2, and 33.0.0 to before 33.0.1, the files_lock app did not prop…

CVSS 6.3 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45282

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, an authenticated attacker can a…

CVSS 6.5 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45281

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 32.0.0 to before 32.0.9, and 33.0.0 to before 33.0.3, with the knowledge of other use…

CVSS 8.1 · High
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45279

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the templ…

CVSS 4.4 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45278

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. From version 6.1.0 to before version 8.2.2, an attacker can craft links that would redirect users to another website, w…

CVSS 3.3 · Low
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45277

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, authenticated users can check if arbitrary files are associated with specific approval workflow…

CVSS 3.3 · Low
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-45275

Published Jun 1, 2026

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without shar…

CVSS 6.5 · Medium
evidence mentions
3
Buzz score
20.4
Vendor/product tagsBeta · best-effort

CVE-2026-22683

Published Apr 7, 2026

Windmill versions 1.56.0 through 1.614.0 contain a missing authorization vulnerability that allows users with the Operator role to perform prohibited entity creation and modificat…

CVSS 8.7 · High
evidence mentions
6
Buzz score
36.0
Vendor/product tagsBeta · best-effort

CVE-2025-64011

Published Dec 12, 2025

Nextcloud Server 30.0.0 is vulnerable to an Insecure Direct Object Reference (IDOR) in the /core/preview endpoint. Any authenticated user can access previews of arbitrary files be…

CVSS 4.3 · Medium
Vendor/product tagsBeta · best-effort

CVE-2025-66558

Published Dec 5, 2025

Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Provider for Nextcloud. Prior to 1.4.2 and 2.4.1, a missing ownership check allowed an attack to take-away a 2FA webauthn d…

CVSS 3.1 · Low
Vendor/product tagsBeta · best-effort

CVE-2025-66557

Published Dec 5, 2025

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.14.6 and 1.15.2, a bug in th…

CVSS 5.4 · Medium
Vendor/product tagsBeta · best-effort

CVE-2025-66556

Published Dec 5, 2025

Nextcloud talk is a video & audio conferencing app for Nextcloud. Prior to 20.1.8 and 21.1.2, a participant with chat permissions was able to delete poll drafts of other participa…

CVSS 3.5 · Low
Vendor/product tagsBeta · best-effort

CVE-2025-66554

Published Dec 5, 2025

Contacts app for Nextcloud easily syncs contacts from various devices with your Nextcloud and allows editing. Prior to 5.5.4, 6.0.6, and 7.2.5, a malicious user was able to modify…

CVSS 3.5 · Low
Vendor/product tagsBeta · best-effort

CVE-2025-66553

Published Dec 5, 2025

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.7 and 0.9.4, authenticated users were able to view meta data of columns in other tables…

CVSS 4.3 · Medium
Vendor/product tagsBeta · best-effort

CVE-2025-66551

Published Dec 5, 2025

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column…

CVSS 6.3 · Medium
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