GHSA-7RC3-G7H6-22M7 File Browser: Colliding username normalization gives two users the same home directory

Summary FileBrowser confines each user to a scope: a home directory that acts as the boundary for everything they can read or write. When self-registration and automatic home-directory creation are both enabled Signup=true and CreateUserDir=true, a new user's scope is built from their username...

EUVD-2026-44708

File Browser: Colliding username normalization gives two users the same home directory...

EUVD-2026-44707

File Browser: Archive builder turns backslash filenames into path traversal zip-slip...

EUVD-2026-42272

File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope...

GHSA-FMM7-X4GX-8JHR File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup

Summary A scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, and the application's own database via the upload failure-cleanup path. This is an incomplete fix of CVE-2026-54094: the v2.63.14 ScopedFs containme...

File Browser: Out-of-scope file deletion by a Create-only scoped user via symlink-following RemoveAll in upload failure-cleanup

Summary A scoped, non-admin File Browser user holding only the Create permission can delete arbitrary files outside their scope other tenants' data, and the application's own database via the upload failure-cleanup path. This is an incomplete fix of CVE-2026-54094: the v2.63.14 ScopedFs containme...

CVE-2026-54910 FileBrowser Quantum's path traversal issue in subtitle handler allows any authenticated user to read arbitrary files

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.4.3-beta, the subtitlesHandler endpoint GET /api/media/subtitles accepts two user-controlled query parameters: path and name, both of which are used in filesystem operations without sanitization, creating two...

PT-2026-61605

Name of the Vulnerable Software and Affected Versions FileBrowser Quantum versions prior to 1.4.3-beta Description The subtitlesHandler endpoint GET /api/media/subtitles contains path traversal flaws due to insufficient sanitization of the path and name query parameters. The path parameter is...

GO-2026-5962 File Browser: Command Injection via Authentication Hook Shell Substitution (Pre-Authentication RCE) in github.com/filebrowser/filebrowser

File Browser: Command Injection via Authentication Hook Shell Substitution Pre-Authentication RCE in github.com/filebrowser/filebrowser...

GO-2026-5966 File Browser: Authentication Bypass via Proxy Auth Header Forgery in github.com/filebrowser/filebrowser

File Browser: Authentication Bypass via Proxy Auth Header Forgery in github.com/filebrowser/filebrowser...

CVE-2026-62843

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAllnameInArchive, "", "/", which turns a POSIX filename such as ....\evil.sh into the...

CVE-2026-62685

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername when Signup=true and CreateUserDir=true, but the many-to-one...

CVE-2026-62685 File Browser: Colliding username normalization gives two users the same home directory

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername when Signup=true and CreateUserDir=true, but the many-to-one...

CVE-2026-62685 File Browser: Colliding username normalization gives two users the same home directory

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername when Signup=true and CreateUserDir=true, but the many-to-one...

CVE-2026-62685

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername when Signup=true and CreateUserDir=true, but the many-to-one...

CVE-2026-62685

The CVE affects File Browser prior to version 2.63.17. The issue arises in how user scopes are built from usernames via cleanUsername() when Signup=true and CreateUserDir=true: the many-to-one normalization can collapse usernames such as team/one, team one, and team-one to the same home directory...

CVE-2026-62685 File Browser: Colliding username normalization gives two users the same home directory

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.17, File Browser builds new user scopes from usernames passed through cleanUsername when Signup=true and CreateUserDir=true, but the many-to-one...

CVE-2026-62843

CVE-2026-62843 affects File Browser (versions 2.63.6–2.63.16). The archive builder calls strings.ReplaceAll(nameInArchive, "\", "/"), which can transform a POSIX filename like ..\..\evil.sh into ../../evil.sh within the generated zip/tar. This enables a user with upload permissions to place a bac...

CVE-2026-62843 File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAllnameInArchive, "", "/", which turns a POSIX filename such as ....\evil.sh into the...

CVE-2026-62843 File Browser: Archive builder turns backslash filenames into path traversal (zip-slip)

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.63.6 to 2.63.16, File Browser's archive builder uses strings.ReplaceAllnameInArchive, "", "/", which turns a POSIX filename such as ....\evil.sh into the...