Is CVE-2026-15326 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15326 being exploited in the wild.

How severe is CVE-2026-15326?

Low severity, with a CVSS score of 3.8, published 10 July 2026.

Is there a fix for CVE-2026-15326?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15326 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-15326?

Check whether you run Halo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-15326: halo-dev Halo path traversal in Theme Installation

CVE-2026-15326 · Severity: low · CVSS 3.8 · Published 2026-07-10

A vulnerability was found in Halo, an open-source website builder and content management system. An attacker with administrative privileges can exploit the theme installation process to write files to unintended locations on the server. This could potentially lead to service disruptions or unauthorized modification of system files.

Technologies: Halo. Vendors: Halo.

Quick answers

Is CVE-2026-15326 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15326 being exploited in the wild.
How severe is CVE-2026-15326?: Low severity, with a CVSS score of 3.8, published 10 July 2026.
Which products and versions are affected?: Halo up to 2.24.2.
Is there a fix for CVE-2026-15326?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15326 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-15326?: Check whether you run Halo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability exists in halo-dev Halo up to version 2.24.2 within the Theme Installation component. The root cause is insufficient validation of the 'metadata.name' argument in the ThemeUtils.unzipThemeTo function in ThemeUtils.java. A remote attacker with high privileges (PR:H) can manipulate this argument to escape the intended directory during the theme unzipping process. This can result in arbitrary file writes on the host system. While the project closed the original issue as a duplicate, a public exploit is reportedly available.

Affected products

halo-dev Halo up to 2.24.2

Timeline

2026-07-10: disclosed: Vulnerability published to NVD/VulDB

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.