Just days after they went public, Reddit is staring down a challenge from Nokia, which has accused the "front page of the internet" of infringing some of its thousands of patents.

Reddit disclosed in an updated SEC filing today that it received a letter from Nokia Technologies on Monday claiming that the platform "infringes some of their patents," the filing said.

"We will evaluate their claims," Reddit told the SEC, adding that its rising profile as a soon-to-be-public company could mean it will receive additional intellectual property claims in the future. It's not the first time it's faced such accusations, either, Reddit said.

"Various 'non-practicing entities' and other holders of intellectual property rights have claimed in the past … and may seek to try in the future, to monetize the intellectual property rights they own to extract value through licensing arrangements or other deals," Reddit added.