CVE-2026-15326 halo-dev halo Theme Installation ThemeUtils.java ThemeUtils.unzipThemeTo path traversal
Remote attackers can exploit path traversal in Halo CMS theme installation to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15326?
CVE-2026-15326 is a medium-severity path traversal vulnerability in halo-dev halo, published on 10 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-22
Which versions are affected by CVE-2026-15326?
How do I fix CVE-2026-15326?
No fix has been published for CVE-2026-15326 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-15326 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15326 exists.
Sources
Also known as GHSA-9p22-639x-ghp4.