CVE-2026-70375 HashBrown CMS - OS Command Injection via Git Deployer Branch Field
Attackers can execute arbitrary OS commands via the Git deployer branch field in HashBrown CMS, requiring immediate patching.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-70375?
CVE-2026-70375 is a high-severity command injection vulnerability in HashBrownCMS hashbrown-cms, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the Git deployer component. GitDeployer.pullRepo in src/Server/Entity/Deployer/GitDeployer.js executes AppService.exec, interpolating the configured branch value directly into a shell command with no escaping.
Weakness: CWE-78
Which versions are affected by CVE-2026-70375?
How do I fix CVE-2026-70375?
No fix has been published for CVE-2026-70375 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-70375 being exploited?
There is no known exploitation of CVE-2026-70375 in the wild and no public exploit code.
Sources
Also known as GHSA-h9gr-58w4-64cq.