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    CVE-2026-54090

    File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.33.8, when a shell interpreter is configured (e.g. /bin/sh -c), the command allowlist can be bypassed through shell metacharacters. The allowlist validates only the first token of user input, but the entire raw string is handed to the shell — semicolons, pipes, backticks, and $() all work to chain arbitrary commands after a permitted one. This vulnerability is fixed in 2.33.8.

    Published:Jun 25, 2026
    Last Modified:Jun 26, 2026
    EPS:Jun 25, 2026
    EPSS Score:0.00323
    CVSS Score:8.7

    Affected Products

    Vendor
    Filebrowser
    Product
    Filebrowser

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-82238 (CVSS 2.3) — filebrowser from version 2.24.0 contains a race condition in the TUS upload handler that allows authenticated …
    CVE-2026-82237 (CVSS 2.3) — filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion trigger…
    CVE-2026-82236 (CVSS 2.3) — File Browser versions from 2.63.6 through 2.63.23 fail to clean up public share links when a privileged user d…
    CVE-2026-82235 (CVSS 8.2) — filebrowser through 2.63.23 fails to validate named pipes in directory archive and public download handlers, a…
    CVE-2026-62684 (CVSS 2.7) — File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files wit…
    CVE-2026-72838 (CVSS 7.1) — FileBrowser versions before 2.63.19 fail to enforce the declared Upload-Length in the TUS resumable-upload PAT…
    CVE-2026-72837 (CVSS 8.7) — File Browser versions before 2.63.20 fail to honor the createUserDir isolation in proxy and hook authenticatio…
    CVE-2026-72836 (CVSS 9.2) — FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory owne…
    CVE-2026-72835 (CVSS 7.6) — filebrowser versions before v2.63.21 fail to canonicalize paths before evaluating access rules, allowing authe…
    CVE-2026-72834 (CVSS 5.3) — filebrowser before 2.63.19 contains a permission bypass in the /api/resources endpoint. The checksum (?checksu…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High