What’s Vulnerable › Vulnerabilities

CVE-2026-61874: filebrowser before 2.63.17 Stale Public Share via Trailing-Slash Delete

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-12 · updated 2026-07-13
• Weakness: CWE-863

Description

filebrowser versions before 2.63.17 fail to normalize paths before querying the share index in DeleteWithPathPrefix, allowing authenticated users to leave stale public shares behind. Attackers can delete a shared directory using a trailing-slash path, then recreate the same directory to expose new contents through the dormant public share URL.

Affected products

• filebrowser: before 2.63.17 — fixed in 2.63.17

How to fix

Upgrade to a fixed version: filebrowser 2.63.17. Check the vendor advisory for mitigations.

References

• https://github.com/filebrowser/filebrowser/commit/be23ab3a15bf957928ecfed88de5ab67850c1b9c
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-pp88-jhwj-5qh5
• https://www.vulncheck.com/advisories/filebrowser-before-stale-public-share-via-trailing-slash-delete
• https://github.com/filebrowser/filebrowser/security/advisories/GHSA-pp88-jhwj-5qh5

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