CVE-2026-73613
highpriority · track · 0EPSS 0.006 · 46 %ileEUEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–8.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6cnnvd
- https://www.vulncheck.com/advisories/filebrowser-before-out-of-scope-file-deletion-via-symlinkcnnvd
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6enisa_euvd
- https://www.vulncheck.com/advisories/filebrowser-before-out-of-scope-file-deletion-via-symlinkenisa_euvd
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m9f5-2232-frp6nvd
- https://www.vulncheck.com/advisories/filebrowser-before-out-of-scope-file-deletion-via-symlinknvd
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