Vulnerability · Published Oct 28, 2026 · Assigned by juniper

CVE-2026-103405Session Smart Router and Session Smart Conductor: Unsanitized input causes HTTP response splitting

Medium 5.8

In plain English

A medium-severity injection in Session Smart Conductor from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)5.8Medium
Exploit odds (30 days)0.2%top 86.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Juniper Networks Session Smart Router 0 – before 7.0.57.1.0 – before 7.1.77.2.0 – before 7.2.3
Juniper Networks Session Smart Conductor 0 – before 7.0.57.1.0 – before 7.1.77.2.0 – before 7.2.3

Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

References