CVE-2026-103405

MEDIUMCVSS 5.8/10

Last modified

CVE-2026-103405 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters..

Description

An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters.

Metrics

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Juniper NetworksSession Smart Router< 7.0.5; >= 7.1.0, < 7.1.7; >= 7.2.0, < 7.2.3
Juniper NetworksSession Smart Conductor< 7.0.5; >= 7.1.0, < 7.1.7; >= 7.2.0, < 7.2.3

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-103405?
An Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the web server in Juniper Networks Session Smart Router and Session Smart Conductor allows an attacker to inject arbitrary HTTP headers via unsanitized request body parameters.
How severe is CVE-2026-103405?
CVE-2026-103405 has a CVSS score of 5.8/10 (MEDIUM severity).
How do I fix CVE-2026-103405?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST