GHSA-WM3W-8RRP-J577 vulnerabilities

Vulnerabilities for packages: nextcloud-server...

GHSA-G446-98W2-8P5W vulnerabilities

Vulnerabilities for packages: nextcloud-server...

CVE-2026-59883 vulnerabilities

Vulnerabilities for packages: nextcloud-server...

Hackers Exploit Windmill Flaw to Read Arbitrary Server Files Without Authentication

A high-severity security flaw impacting open-source developer platform Windmill has come under active exploitation in the wild, per VulnCheck. The vulnerability in question is CVE-2026-29059 CVSS score: 7.5, a case of unauthenticated path traversal impacting Windmill's "getlogfile" endpoint...

BIT-NEXTCLOUD-2025-66552 Nextcloud Server admin_audit does not log all actions on files in groupfolders

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the adminaudit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed ...

BIT-NEXTCLOUD-2025-66510 Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

PT-2026-57826

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed...

PT-2026-57825

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users emails, names, identifiers without prop...

BIT-NEXTCLOUD-2026-45691 Nextcloud: Bypass of second factor authentication on DAV endpoints

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...

BIT-NEXTCLOUD-2026-45690 Nextcloud: Two-Factor Authentication Bypass via Pending Session Token Replay

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...

BIT-NEXTCLOUD-2026-45281 Nextcloud: Cross-Account Calendar Takeover via Unauthorized Group-Member-Set Update

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 users’ principal URL an attacker could possibly send a request to gain full access to their calendar. Therefore, the...

BIT-NEXTCLOUD-2026-45157 Nextcloud: Valid share tokens allow to access tempory upload files of share owner

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...

BIT-NEXTCLOUD-2026-45153 Nextcloud: PIN bypass in PassCodeActivity via back button

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...

BIT-NEXTCLOUD-2025-66547 Nextcloud Server users can modify tags on files that do not belong to them

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1...

BIT-NEXTCLOUD-2023-49790 App PIN code can be bypassed in Nextcloud Files iOS

The Nextcloud iOS Files app allows users of iOS to interact with Nextcloud, a self-hosted productivity platform. Prior to version 4.9.2, the application can be used without providing the 4 digit PIN code. Nextcloud iOS Files app should be upgraded to 4.9.2 to receive the patch. No known workaroun...

BIT-NEXTCLOUD-2023-28999 Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders

Nextcloud is an open-source productivity platform. In Nextcloud Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server administrator can gain full access to an end-to-end encrypted folder. They can decrypt files,...

BIT-NEXTCLOUD-2023-28647 App pin of the iOS app can be bypassed in Nextcloud iOS

Nextcloud iOS is an ios application used to interface with the nextcloud home cloud ecosystem. In versions prior to 4.7.0 when an attacker has physical access to an unlocked device, they may enable the integration into the iOS Files app and bypass the Nextcloud pin/password protection and gain...

BIT-NEXTCLOUD-2023-28646 App lockout in nextcloud Android app can be bypassed via thirdparty apps

Nextcloud android is an android app for interfacing with the nextcloud home server ecosystem. In versions from 3.7.0 and before 3.24.1 an attacker that has access to the unlocked physical device can bypass the Nextcloud Android Pin/passcode protection via a thirdparty app. This allows to see meta...

BIT-NEXTCLOUD-2022-39210 Access to internal files of the Nextcloud Android app

Nextcloud android is the official Android client for the Nextcloud home server platform. Internal paths to the Nextcloud Android app files are not properly protected. As a result access to internal files of the from within the Nextcloud Android app is possible. This may lead to a leak of sensitiv...

BIT-NEXTCLOUD-2022-29160 Sensitive files/data exist after deletion of user account in Nextcloud Android

Nextcloud Android is the Android client for Nextcloud, a self-hosted productivity platform. Prior to version 3.19.0, sensitive tokens, images, and user related details exist after deletion of a user account. This could result in misuse of the former account holder's information. Nextcloud Android...