CVE Catalog

CVE-2026-108555

MediumCVSS 4.2
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.14%

3th percentile - higher than 3% of all known CVEs

Summary

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.

Risk Assessment

The risk includes unauthorized network access and file exchange with victims, potentially leading to privacy and security breaches.

Recommendation

Upgrade PairDrop to a version newer than 1.11.2 and validate the cf-connecting-ip header only when the instance is behind Cloudflare, or use alternative IP verification methods.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS