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CVE-2026-82237 Details

Description

filebrowser through 2.63.23 does not remove share records when a shared file is renamed (only deletion triggers share cleanup). The share record is keyed by path, so it survives the rename and remains dormant (returning 404 while the path is empty). When any new, unrelated file later appears at the original shared path — via re-upload, another user with create permission, or a hook — the stale public share link serves that new file under the original link's password and expiry settings, unexpectedly exposing it.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3.1 LOWVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m8v4-4w34-rrvf	CISA-ADP
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-m8v4-4w34-rrvf	[email protected]
https://www.vulncheck.com/advisories/filebrowser-through-2.63.23-stale-share-link-via-file-rename	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-459	Incomplete Cleanup	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Aug 28, 2026	CVE Modified	CISA-ADP
Aug 28, 2026	New CVE Received	[email protected]