CVE-2026-76654 Subpath symlinking on Windows nodes permits NTLM coercion
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-76654?
CVE-2026-76654 is a medium-severity vulnerability in Kubernetes, published on 26 Oct 2026.
Official description
An NTLM coercion vulnerability exists on Windows nodes when the subPath supplied in a pod's volumeMounts is set to a symbolic link that points to an attacker-controlled network share. When a kubelet resolves symlinks, it does not reject a target that resolves to a UNC path. As a result, the kubelet will transparently attempt to authenticate to the share using NTLM. This allows an attacker to obtain the NetNTLMv2 hash of the account under which the kubelet is running. An attacker could then attempt to crack the hash to retrieve the corresponding password or relay it to impersonate the node, if the node is domain-joined.
Weakness: CWE-59
Which versions are affected by CVE-2026-76654?
How do I fix CVE-2026-76654?
No fix has been published for CVE-2026-76654 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-76654 being exploited?
There is no known exploitation of CVE-2026-76654 in the wild and no public exploit code.
Sources
Also known as AZL-111137, GHSA-fvcc-576m-9wv4.