Homosexuality does not disqualify applicants from CIA employment. At least not officially. It's entirely possible that there is bias built into the hiring process. For example, if your polygraph examiner harbors a bias against homosexuals, this could make your "failing" more likely.

In any event, the CIA does have a so-called "affinity group" for gay and lesbian employees called the Agency Network for Gay and Lesbian Employees (ANGLE):

https://www.cia.gov/careers/diversity/cia-diversity-initiatives/affinity-groups....

The CIA DOES NOT discriminate against LGBTQ individuals. As with any job interview you go into, there is always going to be a remote possibility that you will encounter a close-minded individual. But there is no question about sexuality on CIA's polygraph. It was removed from their test back in the early 1990's. If its concerning to you, I recommend bringing it up with your Examiner in their pre-test interview. That way you can alleviate your concern, get it out of the way, and then focus on the real issue at hand: National Security. The Agency believes in diversity, which includes members of the LGBTQ community, as suggested by their ANGLE Network. Best of luck to you in the rest of your process.

In response to an above commenter that equated being opposed to homosexuality as being close-minded;  That was an ignorant statement.  Those who have thoroughly examined the issue and have come away opposed to it are in no way close-minded.  Disagreement with homosexuality does not equate close-mindedness, hate, nor bigotry.