Yes, there are life insurance carriers that may insure a cancer patient for life insurance to cover burial costs. A fully underwritten life insurance policy that requires a medical exam may be more difficult to get approved for coverage.
However, there are "guaranteed issue" burial insurance policies available which do not require a medical exam, and do not ask questions about your health.
These burial policies offer guaranteed approval for people meeting the age requirements - some insurers offer guaranteed acceptance for people ages 45-75, 40-80, or 45-85, depending on the insurance company.
Make sure to check when your policy provides full (100%) death benefit coverage before choosing a plan.
Learn more about how to get burial insurance for cancer patients.