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CVE-2026-73509

OpenList: Authenticated users can rename files outside their base path via batch rename `src_name` traversal PUBLISHED

Description (CNA)

OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4.

Affected (CNA)

Vendor / productVersions
OpenListTeam / OpenListaffected < 4.2.4

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.