Session Smart Router and Session Smart Conductor: Unsanitized input causes HTTP response splitting

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-103405
StatePUBLISHED
Assignerjuniper
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 17:17:25 UTC
Updated2026-10-28 17:17:25 UTC
DescriptionAn 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.

Risk And Classification

Primary CVSS: v3.1 5.8 MEDIUM from [email protected]

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

Problem Types: CWE-74 | CWE-74 CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
3.1CNACVSS5.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Juniper Networks Session Smart Router affected 7.0.5 custom Not specified
CNA Juniper Networks Session Smart Router affected 7.1.0 7.1.7 custom Not specified
CNA Juniper Networks Session Smart Router affected 7.2.0 7.2.3 custom Not specified
CNA Juniper Networks Session Smart Conductor affected 7.0.5 custom Not specified
CNA Juniper Networks Session Smart Conductor affected 7.1.0 7.1.7 custom Not specified
CNA Juniper Networks Session Smart Conductor affected 7.2.0 7.2.3 custom Not specified

References

ReferenceSourceLinkTags
supportportal.juniper.net/JSA112183 [email protected] supportportal.juniper.net
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: The following software releases of Session Smart Router and Session Smart Conductor have been updated to resolve these specific issues: * 7.0.5 and all subsequent releases; * 7.1.7 and all subsequent releases; * 7.2.3 and all subsequent releases.

Workarounds

CNA: There are no known workarounds for this issue.

Exploits

CNA: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

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