PT-2026-45474

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...

Nextcloud Server 访问控制错误漏洞

NextCloud Server is an open-source NextCloud server program. Versions of NextCloud Server from 32.0.0 to 32.0.9 and from 33.0.0 to 33.0.3 had a access control vulnerability due to improper sharing token access controls. This vulnerability could allow malicious users to access temporarily uploaded...

Nextcloud Server 授权问题漏洞

NextCloud Server is an open-source NextCloud server program developed by NextCloud. Versions of NextCloud Server from 32.0.0 to 32.0.9 and from 33.0.0 to 33.0.3 contained vulnerabilities related to authorization. These vulnerabilities stemmed from the possibility that the session cookie, which...

Nextcloud Calendar 信息泄露漏洞

NextCloud Calendar is an open-source calendar application developed by NextCloud. There were information leakage vulnerabilities in versions 5.5.13 to 5.5.17 and 6.2.0 to 6.2.3 of NextCloud Calendar. These vulnerabilities stemmed from the lack of shared restrictions applied to the meeting...

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. Versions of Nextcloud between 32.0.0 and 32.0.9, as well as versions between 33.0.0 and 33.0.3, contained a access control vulnerability. This...

PT-2026-45533

Name of the Vulnerable Software and Affected Versions Nextcloud versions 0.7.0 through 0.7.6 Nextcloud versions 0.8.0 through 0.8.9 Nextcloud versions 0.9.0 through 0.9.7 Nextcloud versions 1.0.0 through 1.0.3 Description An authenticated attacker with access to the Tables app can execute arbitra...

CVE-2026-45544: Exposure of Sensitive Information Through Metadata

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 Nextcloud Tables. This issue has been patched in versions 1.0.4 and 2.0.0...

CVE-2026-45153: Improper Authentication

Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0...

CVE-2026-45156: Improper Authentication

Nextcloud is an open source content collaboration platform. From versions 0.3.0 to before 3.1.0, 5.0.0 to before 5.1.0, and 6.0.0 to before 6.4.0, a missing signature verification in User OIDC allowed a malicious ID4me authority to identify as any user. This issue has been patched in versions...

CVE-2026-45277: Exposure of Sensitive Information to an Unauthorized Actor

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 workflows where they can request approval. This issue has been patched in version 2.7.2...

CVE-2026-45157: Improper Access Control

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, when a malicious user has access to a file share of a user, they could use this share token to also access the chunking upload directly and see...

CVE-2026-45279: Improper Limitation of a Pathname to a Restricted Directory

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 template directory config value, non-admin users can in some cases copy arbitrary files depending on unix permissions into...

CVE-2026-45266: Improper Access Control

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 Teams 安全漏洞

NextCloud Teams is an open-source team collaboration and group management tool developed by NextCloud. There were security vulnerabilities in versions of NextCloud Teams between 32.0.0 and 32.0.9, as well as between 33.0.0 and 33.0.3. These vulnerabilities stemmed from the system automatically...

PT-2026-45525

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 versions prior to 33.0.3 Nextcloud Enterprise Server versions prior to 32.0.9 Nextcloud Enterprise Server versions prio...

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. Vulnerabilities existed in versions of Nextcloud prior to 21.1.10, 22.0.11, and 23.0.3 due to access control flaws. These vulnerabilities stemmed from...

CVE-2026-45690: 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, an authentication bypass vulnerability allowed attackers with knowledge of a user's password to circumvent two-factor authentication 2FA protections...

Nextcloud SQL注入漏洞

Nextcloud is an open-source, self-hosted communication platform for file synchronization and sharing developed by the German company Nextcloud. Versions of Nextcloud from 0.9.0 to 0.9.7, as well as versions from 1.0.0 to 1.0.2, had a SQL injection vulnerability. This vulnerability stemmed from...

Nextcloud Forms 安全漏洞

NextCloud Forms is an open-source, hosted questionnaire and form creation tool developed by NextCloud. There were security vulnerabilities in versions 4.3.0 to 5.2.7 of NextCloud Forms, which stemmed from unauthorized access to respondent files uploaded through affected forms, due to retained...

PT-2026-45473

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 versions prior to 26.0.13.26 Nextcloud Enterprise Server versions prior to 27.1.11.25 Nextcloud Enterprise Server...