CVE-2026-26234Public exploitNetwork attack vector

Cache poisoning via trusted X-Forwarded-Host header

Published Feb 12, 2026 · Updated Feb 12, 2026

HTTP header injection in JUNG Smart Visu Server 1.0.830, 1.0.832, 1.0.905, and 1.1.1050 allows remote attackers to poison caches. The Jetty-backed /rest/items endpoint trusts an unvalidated X-Forwarded-Host value when generating URLs, causing responses to embed attacker-controlled links. No credentials are required, but user interaction is required for phishing, session hijacking, redirection, or malicious-content delivery through a tainted response.

CVSS severity8.7
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTTP header injection in JUNG Smart Visu Server 1.0.830, 1.0.832, 1.0.905, and 1.1.1050 allows remote attackers to poison caches. The Jetty-backed /rest/items endpoint trusts an unvalidated X-Forwarded-Host value when generating URLs, causing responses to embed attacker-controlled links. No credentials are required, but user interaction is required for phishing, session hijacking, redirection, or malicious-content delivery through a tainted response.

The record

CVE
CVE-2026-26234
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
JUNG
Product
JUNG Smart Visu Server
Classifications
CWE-644, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.830
  2. Affected versionversion=1.0.832
  3. Affected versionversion=1.0.905
  4. Affected versionversion=1.1.1050

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

JUNG · JUNG Smart Visu Serverversion=1.0.830; version=1.0.832; version=1.0.905; version=1.1.1050

Published CVSS scores

8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-644Improper Neutralization of HTTP Headers for Scripting Syntax
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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