CVE-2026-108555CWE-348

CVE-2026-108555

Medium · published October 10, 2026

CVSS v3.1
4.2
EPSS
0%
Percentile
2.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.2 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
2.3 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00135 · 2.7th percentile
Weakness
CWE-348 · Use of Less Trusted Source
Published
2026-10-10T19:16Z
References (5)
https://github.com/schlagmichdoch/PairDrop · [email protected]https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/peer.js#L44-L54 · [email protected]https://github.com/schlagmichdoch/PairDrop/blob/4862ba3067be1a0f2e0d1e94861dc9200b5bfeea/server/ws-server.js#L312-L314 · [email protected]https://github.com/schlagmichdoch/PairDrop/issues/510 · [email protected]https://www.vulncheck.com/advisories/pairdrop-through-1.11.2-ip-spoofing-via-cf-connecting-ip-header · [email protected]
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 14:49Z
    PairDrop through 1.11.2 IP Spoofing via cf-connecting-ip Header
    cvelistv5
  • 10 OCT 14:49Z
    PairDrop through 1.11.2 IP Spoofing via cf-connecting-ip Header
    cvelistv5