High severity · published Feb 12, 2026
CVE-2026-26234
JUNG Smart Visu Server - Improper Neutralization of HTTP Headers for Scripting Syntax
8.8
CVSS
0.6%
EPSS
No
On KEV
Description
JUNG Smart Visu Server 1.1.1050 contains a request header manipulation vulnerability that allows unauthenticated attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host header. Attackers can manipulate proxied requests to generate tainted responses, enabling cache poisoning, potential phishing, and redirecting users to malicious domains.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
JUNG Smart Visu Server · ALBRECHT JUNG GMBH & CO. KG
1.1.1050; 1.0.905; 1.0.832; 1.0.830 · source: vendor
SV
Smart Visu Server Firmware · Jung-group
1.0.830 through 1.1.1050 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26234
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26234
Third Party Advisory
https://www.vulncheck.com/advisories/jung-smart-visu-server-improper-neutralization-of-http-headers-for-scripting-syntax
Exploit
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5970.php
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