Path Traversal Vulnerability in braindecode by BrainDecode
CVE-2026-124999

5.3MEDIUM

Key Information:

Vendor

BrainDecode

Status
Braindecode
Vendor
CVE Published:
9 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-124999?

A security vulnerability has been identified within the braindecode product, specifically in the EEGModuleMixin._from_pretrained function located in braindecode/models/base.py. This flaw allows for path traversal when maliciously manipulating the filename argument. The vulnerability can be exploited remotely, posing a risk to applications utilizing this component. It is critical for users of braindecode versions up to 1.8.2 to upgrade to version 2.0.0 or later to effectively address this issue. The patch can be found under commit 05b764d93b9a50400f523206fbe03d73d0cf5edb.

Affected Version(s)

braindecode 1.8.0

braindecode 1.8.1

braindecode 1.8.2

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-2026-124999 - Proof of Concept

References

https://vuldb.com/vuln/433167
vdb-entrytechnical-description
https://vuldb.com/vuln/433167/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-124999
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Dem00000 (VulDB User)
.