Halo-dev Halo vulnerabilities

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Published CVEs affecting Halo-dev Halo: 5 record(s), with affected versions and fixes.

CVE-2026-97182 High · 7.3 CWE-20 Sep 24, 2026

halo-dev Halo SpEL ReplyNotificationSubscriptionHelper.java neutralization

A security vulnerability has been detected in halo-dev Halo up to 2.25.4/2.26.1. Affected is an unknown function of the file application/src/main/java/run/halo/app/content/comment/ReplyNotificationSubscriptionHelper.java of the component SpEL Handler. Such manipulation leads to improper neutralization. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVE-2026-91772 Medium · 6.1 CWE-601 Sep 14, 2026

Halo through 2.26.1 Open Redirect via Unvalidated URI Parameter

Halo through 2.26.1 contains an open redirect vulnerability in the anonymous thumbnail endpoint that fails to validate the uri query parameter. Attackers can craft malicious links on the trusted Halo domain that redirect visitors to arbitrary external sites, enabling phishing attacks and abuse of redirect-based trust relationships.

CVE-2026-16088 Medium · 4.7 CWE-22 Jul 18, 2026

halo-dev halo Files Backup Endpoint MigrationEndpoint.java download path traversal

A vulnerability was detected in halo-dev halo up to 2.24.2. Affected by this vulnerability is the function Download of the file MigrationEndpoint.java of the component Files Backup Endpoint. Performing a manipulation results in path traversal. The attack is possible to be carried out remotely. The exploit is now public and may be used.

CVE-2026-15326 Low · 3.8 CWE-22 Jul 10, 2026

halo-dev halo Theme Installation ThemeUtils.java ThemeUtils.unzipThemeTo path traversal

A vulnerability was identified in halo-dev halo up to 2.24.2. This affects the function ThemeUtils.unzipThemeTo of the file ThemeUtils.java of the component Theme Installation. Such manipulation of the argument metadata.name leads to path traversal. The attack may be launched remotely. The exploit is publicly available and might be used. The project closed the issue as "duplicate" but did not reference any other issue, report, or CVE.

CVE-2026-55439 Medium · 5.5 CWE-22 Jun 25, 2026

Halo: Path Traversal in Backup Download Leads to Arbitrary File Read

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.