Nextcloud 访问控制错误漏洞

Nextcloud is an open-source, self-hosted communication platform for file synchronization and sharing developed by the German company Nextcloud. In versions 1.3.6 to 8.4.0, there was a vulnerability related to access control. This vulnerability stemmed from improper checks, allowing users...

Nextcloud Collectives 访问控制错误漏洞

NextCloud Collectives is an open-source collaboration and knowledge management tool developed by NextCloud. In versions 2.6.0 to 4.3.0 of NextCloud Collectives, there was a security vulnerability related to access control. This vulnerability stemmed from a lack of permission checks, which could...

Nextcloud Tables SQL注入漏洞

NextCloud Tables is an open-source table-based application developed by NextCloud. Versions of NextCloud Tables from 0.7.0 to 0.7.7, 0.8.0 to 0.8.10, 0.9.0 to 0.9.8, and 1.0.0 to 1.0.4 have SQL injection vulnerabilities. These vulnerabilities stem from stored injection attacks, allowing...

Nextcloud user_oidc 输入验证错误漏洞

Nextcloud useroidc is an application developed by the German company Nextcloud. In versions 6.1.0 to 8.2.2, there was a vulnerability related to input validation errors. This vulnerability stemmed from improper redirection handling, which could allow attackers to create links that redirect users ...

CVE-2026-45722: Improper Neutralization of Special Elements used in an SQL Command

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 with access to the tables app to perform a limited SQL injection in the ORDER BY statement of a query. Compared to...

PT-2026-45523

Name of the Vulnerable Software and Affected Versions Nextcloud versions 6.1.0 through 8.2.1 Description An attacker can craft malicious links that redirect users to an external website when the victim attempts to log in using OpenID Connect OIDC, a protocol used for authentication. Recommendatio...

PT-2026-45521

Name of the Vulnerable Software and Affected Versions Nextcloud Approval app versions prior to 2.7.2 Description A privilege escalation issue exists in the Approval app of the Nextcloud content collaboration platform. This flaw allows a user lacking sharing permissions to force the system to shar...

CVE-2026-45286: Exposure of Sensitive Information to an Unauthorized Actor

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 Nextcloud instance by using the Calendar app's endpoint for suggesting attendees. The sharing restrictions, applied t...

PT-2026-45526

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 access attachments of link shares when knowing the share token, circumventing password protection or download...

CVE-2026-45264: Improper Access Control

Nextcloud is an open source content collaboration platform. From versions 17.0.0 to before 17.0.15, 18.0.0 to before 18.1.12, 19.0.0 to before 19.1.16, 20.0.0 to before 20.1.11, and 21.0.0 to before 21.0.4, a user with READ and CREATE permission, but no UPDATE permission for a team folder can...

CVE-2026-45545: Improper Neutralization of Special Elements used in an SQL Command

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 authenticated attacker with access to the Tables app may be able to execute arbitrary up to 20 bytes long SQL queries,...

CVE-2026-45159: Authorization Bypass Through User-Controlled Key

Nextcloud is an open source content collaboration platform. From versions 1.15.0 to before 1.15.4, 1.16.0 to before 1.16.3, 1.17.0 to before 1.17.1, and 1.18.0 to before 1.18.1, a malicious user with access to an end-to-end encrypted files drop link was able to also drop files into other end-to-e...

CVE-2026-45275: Improper Authorization

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 sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and...

PT-2026-45475

Nextcloud is an open source content collaboration platform. From versions 17.0.0 to before 17.0.15, 18.0.0 to before 18.1.12, 19.0.0 to before 19.1.16, 20.0.0 to before 20.1.11, and 21.0.0 to before 21.0.4, a user with READ and CREATE permission, but no UPDATE permission for a team folder can...

PT-2026-45476

Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user's microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and...

Nextcloud Temporary files lock 授权问题漏洞

NextCloud Temporary Files Lock is an open-source tool developed by NextCloud for locking temporary files, preventing others from editing them. In versions 32.0.0 to 32.0.2 and 33.0.0 to 33.0.1 of NextCloud Temporary Files Lock, there were authorization-related vulnerabilities. These vulnerabiliti...

PT-2026-45524

Name of the Vulnerable Software and Affected Versions Nextcloud Server versions 31.0.0 through 31.0.13 Nextcloud Server versions 32.0.0 through 32.0.3 Nextcloud Enterprise Server versions prior to 28.0.14.15 Nextcloud Enterprise Server versions prior to 29.0.17.12 Nextcloud Enterprise Server...

CVE-2026-45810: Authorization Bypass Through User-Controlled Key

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 th...

CVE-2026-45691: Improper Authentication

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 created after successful password authentication but before TOTP completion could be reused as a Bearer token to authenticat...

PT-2026-45534

Name of the Vulnerable Software and Affected Versions Nextcloud Server versions 32.0.0 through 32.0.8 Nextcloud Server versions 33.0.0 through 33.0.2 Nextcloud Enterprise Server affected versions not specified Description An authentication bypass allows attackers who possess a user's password to...