CVE-2026-73613

filebrowser versions before 2.63.19 contain an out-of-scope file deletion vulnerability in the TUS upload cache eviction mechanism that allows authenticated users with only Create permission to delete arbitrary files outside their scope. Attackers can swap an ancestor directory with a symlink during the cache TTL window to redirect the raw os.Remove call to an out-of-scope target, bypassing ScopedFs scope guards and Perm.Delete checks.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6
https://www.vulncheck.com/advisories/filebrowser-before-out-of-scope-file-deletion-via-symlink

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 12:17

Updated : 2026-09-08 20:32

NVD link : CVE-2026-73613

Mitre link : CVE-2026-73613

CVE.ORG link : CVE-2026-73613

JSON object : View

Products Affected

No product.

CWE

CWE-59

Improper Link Resolution Before File Access ('Link Following')

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