WebTorrent up to 2.8.5/3.0.21 File Path torrent.js getFileModtimes file.path path traversal

Summaryinfo

A vulnerability has been found in WebTorrent up to 2.8.5/3.0.21 and classified as problematic. Affected by this issue is the function getFileModtimes of the file torrent.js of the component File Path Handler. Performing a manipulation of the argument file.path results in path traversal. This vulnerability is cataloged as CVE-2026-124582. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The reported GitHub issue was closed with the label "not planned".

Detailsinfo

A vulnerability, which was classified as problematic, was found in WebTorrent up to 2.8.5/3.0.21. This affects the function getFileModtimes of the file torrent.js of the component File Path Handler. The manipulation of the argument file.path with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-124582. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The reported GitHub issue was closed with the label "not planned".

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Peer-to-Peer Software

Name

• WebTorrent

Version

• 2.8.0
• 2.8.1
• 2.8.2
• 2.8.3
• 2.8.4
• 2.8.5
• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.0.10
• 3.0.11
• 3.0.12
• 3.0.13
• 3.0.14
• 3.0.15
• 3.0.16
• 3.0.17
• 3.0.18
• 3.0.19
• 3.0.20
• 3.0.21

Website

• Product: https://github.com/webtorrent/webtorrent/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #1039255: https://github.com/webtorrent webtorrent 2.8.5 Absolute Path Traversal (by akamoli)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion