---
title: "CVE-2026-103407: Juniper Networks Session Smart Router & Conductor - Path Traversal"
description: "Juniper Networks Session Smart Router and Session Smart Conductor contain a path traversal caused by improper limitation of pathname in ConfigDirector, letting authenticated REST users read, overwrite, or delete arbitrary certificate and key files via REST API."
url: https://panop.io/threat-heartbeat/CVE-2026-103407/
---

# CVE-2026-103407 Juniper Networks Session Smart Router & Conductor - Path Traversal

Juniper Networks Session Smart Router and Session Smart Conductor contain a path traversal caused by improper limitation of pathname in ConfigDirector, letting authenticated REST users read, overwrite, or delete arbitrary certificate and key files via REST API.

CVSS base score 8.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-103407)

## Details

Type

Path Traversal

Impact

File System Read, File System Write, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to the latest version provided by Juniper Networks that addresses this vulnerability.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-103407](https://nvd.nist.gov/vuln/detail/CVE-2026-103407)
- [https://supportportal.juniper.net/JSA112183](https://supportportal.juniper.net/JSA112183)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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