{"id":"CVE-2026-108555","published":"2026-10-10T15:16:58.690","lastModified":"2026-10-16T19:18:44.867","description":"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.","cvssScore":4.2,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N","cwes":["CWE-348"],"vendors":[],"products":[],"references":[{"url":"https://github.com/schlagmichdoch/PairDrop","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/peer.js#L44-L54","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/ws-server.js#L312-L314","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/issues/510","tags":[]},{"url":"https://www.vulncheck.com/advisories/pairdrop-through-1.11.2-ip-spoofing-via-cf-connecting-ip-header","tags":[]}],"exploitRefs":[{"url":"https://github.com/schlagmichdoch/PairDrop","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/peer.js#L44-L54","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/ws-server.js#L312-L314","tags":[]},{"url":"https://github.com/schlagmichdoch/PairDrop/issues/510","tags":[]}],"hasPoc":true,"ai":null}