CVE-2026-108555: Schlagmichdoch Pairdrop

Medium severity, CVSS 4.2.

PairDrop through 1.11.2 contains an IP spoofing vulnerability in Peer._setIP that allows remote attackers to join other networks' discovery rooms by supplying a forged cf-connecting-ip header. Attackers who know a victim's public IP can appear as a local device on self-hosted instances not behind Cloudflare to send or receive files.

Affected products

• Schlagmichdoch Pairdrop: up to and including 1.11.2

Published 2026-10-10. Last modified 2026-10-10.