What’s Vulnerable › Vulnerabilities

CVE-2026-55668: File Browser: ScopedFs follows a dangling symlink on write, letting a scoped user create files outside their scope

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-07-08
• Weakness: CWE-22

Description

File Browser provides a web file managing interface. Prior to 2.63.16, ScopedFs validates the nearest existing ancestor of a dangling symlink as in scope and then follows the symlink during file creation, allowing an authenticated user with Create and Modify permissions to create attacker-controlled files outside the user's scope. This issue is fixed in version 2.63.16.

Affected products

• filebrowser: before 2.63.16

References

• https://github.com/filebrowser/filebrowser/commit/64511ce45e3be379e965f7f4fb0929a068d5bb81
• https://github.com/filebrowser/filebrowser/releases/tag/v2.63.16
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-8wc8-hf36-mjh9

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