CVE-2026-26339 Hyland Alfresco Transformation Service Argument Injection RCE
Unauthenticated attackers can achieve remote code execution via argument injection in the document processing functionality of Alfresco Transformation Service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26339?
CVE-2026-26339 is a critical command injection vulnerability in Hyland Alfresco Community (Transform Core), published on 19 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Hyland Alfresco Transformation Service allows unauthenticated attackers to achieve remote code execution through the argument injection vulnerability, which exists in the document processing functionality.
Weakness: CWE-918
Which versions are affected by CVE-2026-26339?
It affects 2 products.
Products include Hyland Alfresco Transform Core, Hyland Alfresco Transform Service.
How do I fix CVE-2026-26339?
No fix has been published for CVE-2026-26339 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-2026-26339 being exploited?
There is no known exploitation of CVE-2026-26339 in the wild and no public exploit code.
Other vulnerabilities in Hyland Alfresco Community (Transform Core)
Sources
Also known as GHSA-w8hr-79rx-368j.