Path Traversal Vulnerability in WebTorrent by WebTorrent
CVE-2026-124582

5.3MEDIUM

Key Information:

Vendor

WebTorrent

Status
Webtorrent
Vendor
CVE Published:
9 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-124582?

A vulnerability has been discovered in WebTorrent versions up to 2.8.5 and 3.0.21 affecting the getFileModtimes function within the file torrent.js component, specifically the File Path Handler. This weakness allows an attacker to exploit manipulated file.path arguments, leading to potential path traversal. The exploitation can be executed remotely, and given the availability of public exploits, it poses a significant risk. Despite acknowledgment of the issue, it was marked 'not planned' for resolution in the official GitHub repository.

Affected Version(s)

WebTorrent 2.8.0

WebTorrent 2.8.1

WebTorrent 2.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-124582 - Proof of Concept

References

https://vuldb.com/vuln/432939
vdb-entrytechnical-description
https://vuldb.com/vuln/432939/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-124582
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

akamoli (VulDB User)
VulDB CNA Team
.