CVE-2026-55439

Published: Jun 25, 2026Modified: Jun 25, 2026Deferred

5.5

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L

Exploitability: 1.2 / Impact: 4.2

Source: security-advisories@github.com (Secondary)

Description

Halo is an open source website building tool. Prior to 2.24.3, a path traversal vulnerability in the backup download endpoint allows authenticated administrators to read arbitrary files from the server filesystem. The backup download endpoint (GET /apis/console.api.migration.halo.run/v1alpha1/backups/{name}/files/{filename}) in MigrationServiceImpl.download() resolves the backup filename via Path.resolve() without validating that the resolved path stays within the designated backups directory. Also, the Backup creation endpoint (POST /apis/migration.halo.run/v1alpha1/backups) does not sanitize the status fields during creation This vulnerability is fixed in 2.24.3.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://github.com/halo-dev/halo/issues/10064

Source: security-advisories@github.com

https://github.com/halo-dev/halo/security/advisories/GHSA-h8wj-chr2-hf66

Source: security-advisories@github.com

https://github.com/halo-dev/halo/issues/10064

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.