CVE-2026-54097
File Browser: Cross-user unauthorized share-link deletion via unbounded prefix match in DeleteWithPathPrefix
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, a low-privileged authenticated user of filebrowser (with create + delete permissions in their own isolated scope) can silently destroy share-link records belonging to any other user — including the administrator — by performing a legitimate DELETE on a file in their own directory whose logical path happens to be a byte-prefix of another user's stored share.Link.Path. The file contents of the victim are not exposed, but the victim's share links are irrevocably wiped. This vulnerability is fixed in 2.63.6.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 4.0 | High7.2 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Deferred | 4.0 | High7.2 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
Affected products
- affected < 2.63.6
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/filebrowser/filebrowserGHSA-5ww9-jg6q-38r7 (opens in a new tab)
- Gogithub.com/filebrowser/filebrowser/v2GHSA-5ww9-jg6q-38r7 (opens in a new tab)
References (3)
- https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5ww9-jg6q-38r7 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/filebrowser/filebrowser/commit/0231b7ebdfbe77a6c54027d30c4856c3fd81ee4d (opens in a new tab)x_refsource_MISC
- https://github.com/filebrowser/filebrowser/releases/tag/v2.63.6 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-5ww9-jg6q-38r7 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-54097)Record last updated .