CVE-2026-41013 Tenant-controlled comma smuggles arbitrary CIFS mount options
A low-privileged CloudFoundry space developer can inject arbitrary CIFS mount options to escalate privileges and bypass security controls on Diego cells.
- 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-2026-41013?
CVE-2026-41013 is a high-severity command injection vulnerability in CloudFoundry Foundation CF Deployment, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Input validation bypass in SMB volume mount handling in CloudFoundry Foundation diego-release allows low-privileged CF space developer to inject arbitrary kernel CIFS mount options via bypassing the mount-option allowlist, enabling privilege escalation and security control bypass on multi-tenant Diego cells.
Affected versions: smb-volume-release: All versions prior to v3.60.0 CF Deployment: All versions prior to v56.0.0
Weakness: CWE-88
Which versions are affected by CVE-2026-41013?
How do I fix CVE-2026-41013?
No fix has been published for CVE-2026-41013 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-2026-41013 being exploited?
There is no known exploitation of CVE-2026-41013 in the wild and no public exploit code.
Sources
Also known as GHSA-8h76-qw8h-fmjh.