CVE-2026-55439
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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Deferred - security-advisories@github.com
- Published
- 2026-06-25
- Last modified
- 2026-10-25
- Weaknesses
- CWE-22
Affected products
References
- https://github.com/halo-dev/halo/security/advisories/GHSA-h8wj-chr2-hf66
- https://github.com/halo-dev/halo/issues/10064
