CVE-2026-45264

Nextcloud shows an ACL-based permission bypass affecting Team Folders. A user with READ and CREATE (but not UPDATE) permission could rename files within a Team Folder in multiple branches: 17.0.0–17.0.14, 18.0.0–18.1.11, 19.0.0–19.1.15, 20.0.0–20.1.10, and 21.0.0–21.0.3. The issue has been patche...

CVE-2026-45264 Nextcloud: ACL Rename Permission Bypass in Team Folders Allows Unauthorized File Renames

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-2026-45264 Nextcloud: ACL Rename Permission Bypass in Team Folders Allows Unauthorized File Renames

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-2026-45474

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...

Team folders 访问控制错误漏洞

Team Folders is an open-source file sharing software developed by Nextcloud. Versions of Team Folders from 17.0.0 to 17.0.15, from 18.0.0 to 18.1.12, from 19.0.0 to 19.1.16, from 20.0.0 to 20.1.11, and from 21.0.0 to 21.0.4 contain an access control vulnerability. This vulnerability stems from a...

End-to-End Encryption App 安全漏洞

End-to-End Encryption App is an open-source end-to-end encryption client implementation by Nextcloud. Vulnerabilities exist in versions of End-to-End Encryption App between 1.15.0 and 1.15.4, 1.16.0 and 1.16.3, 1.17.0 and 1.17.1, and 1.18.0 and 1.18.1. These vulnerabilities stem from improper...

Admidio has IDOR in `documents-files.php` `mode=move_save` that lets any folder-uploader exfiltrate files from private folders

Summary modules/documents-files.php gates state-changing modes by checking that the actor has hasUploadRight on the URL parameter folderuuid. The movesave handler then operates on a separate URL parameter fileuuid and calls File::moveToFolder$destFolderUUID. File::moveToFolder checks the upload...

GHSA-X628-457G-2PW9 Admidio has IDOR in `documents-files.php` `mode=move_save` that lets any folder-uploader exfiltrate files from private folders

Summary modules/documents-files.php gates state-changing modes by checking that the actor has hasUploadRight on the URL parameter folderuuid. The movesave handler then operates on a separate URL parameter fileuuid and calls File::moveToFolder$destFolderUUID. File::moveToFolder checks the upload...

Admidio: Authorization bypass in file_delete enables cross-folder file removal by authenticated users without delete privileges

Summary An authenticated Admidio member with upload rights on any one folder can permanently delete files from folders where they have only view access. The authorization check at the top of modules/documents-files.php evaluates upload rights against the attacker-supplied folderuuid URL parameter...

PT-2026-45036

Name of the Vulnerable Software and Affected Versions Admidio versions prior to 5.0.10 Description An authenticated member with upload rights to any single folder can permanently delete files from other folders where they only have view access. This occurs because the authorization check in...

CVE-2026-44465 Zed: Zed IDE Arbitrary Code Execution via untrusted repository with poisoned .git/config

Zed is a code editor. Prior to 0.227.1, Zed IDE executes arbitrary commands when opening a folder with a malicious .git/config file that abuses the core.fsmonitor Git configuration option. This allows an attacker to achieve Remote Code Execution RCE when a victim open a folder in untrusted mode...

Malicious npm Package Stole Files From Claude AI User Directory via GitHub

Cybersecurity researchers have discovered a new malicious package on the npm registry that comes with information stealing capabilities. According to OX Security, the package, named "mouse5212-super-formatter," is designed to upload files from "/mnt/user-data," a dedicated directory used by...

SUSE CVE-2026-48700

An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program based on the file type without user confirmation. This could be us...

CVE-2026-48700

An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program based on the file type without user confirmation. This could be us...

CVE-2026-48700

An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program based on the file type without user confirmation. This could be us...

Astra Linux – Vulnerability in Thunderbird

If Thunderbird was configured to use STARTTLS for an IMAP connection, and an attacker injected IMAP server responses before the STARTTLS handshake was completed, then Thunderbird did not ignore the injected data. This could result in Thunderbird displaying incorrect information. For example, the...

CVE-2026-6340

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13, 11.4.x = 11.4.3 fail to validate 7zip archive structure before processing which allows an authenticated attacker to cause server memory exhaustion and denial of service via uploading a specially crafted 7zip file with excessive folder...

PT-2026-41645

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.5.0 through 11.5.1 Mattermost versions 10.11.0 through 10.11.13 Mattermost versions 11.4.0 through 11.4.3 Description An authenticated attacker can cause server memory exhaustion and denial of service by uploading a...

CVE-2026-45402 Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, multiple endpoints accept a user-supplied fileid and attach the referenced file to a resource the caller controls folder knowledge, knowledge-base contents without verifying that the...

CVE-2026-45402 Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, multiple endpoints accept a user-supplied fileid and attach the referenced file to a resource the caller controls folder knowledge, knowledge-base contents without verifying that the...