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CVE-2026-18099— IBM i is Affected By Multiple Vulnerabilities in Navigator for i

Quick assessment

Affected
IBM i
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM i是美国IBM公司的一款操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在跨站脚本漏洞，该漏洞源于对用户控制输入的中和不当，可能导致远程认证攻击者执行任意脚本代码。

CVSS 8.9 · High EPSS 0.33% · P23

Affected Version Matrix 4

VendorProduct Version RangeStatus
IBM i 7.6 affected
7.5 affected
7.4 affected
7.3 affected
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I. Basic Information for CVE-2026-18099

Vulnerability Information
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Vulnerability Title
IBM i is Affected By Multiple Vulnerabilities in Navigator for i
Source: CVE Program / CVE List V5
Vulnerability Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to execute arbitrary script code due to improper neutralization of user-controlled input.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
IBM i 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM i是美国IBM公司的一款操作系统。 IBM i 7.6版本、7.5版本、7.4版本和7.3版本存在跨站脚本漏洞，该漏洞源于对用户控制输入的中和不当，可能导致远程认证攻击者执行任意脚本代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM i 7.6 cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18099

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III. Intelligence Information for CVE-2026-18099

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Vendor Advisories for CVE-2026-18099 (1)

Same Patch Batch · IBM · 2026-08-12 · 68 CVEs total

CVE-2024-27253 10.0 CRITICAL IBM Engineering Requirements Management DOORS Next is impacted by vulnerability in Reviews
CVE-2026-16860 9.9 CRITICAL IBM i is Affected By Remote Code Execution Vulnerability []
CVE-2026-16956 9.8 CRITICAL IBM Db2 Mirror for i is vulnerable to OS command injection []
CVE-2026-17083 9.8 CRITICAL IBM i is Affected By Multiple Vulnerabilities in the Debug Server
CVE-2026-17218 9.8 CRITICAL IBM i is Affected By Remote Code Execution Vulnerability in Line Printer Daemon []
CVE-2026-17276 9.6 CRITICAL IBM i is Affected By Multiple Vulnerabilities in Navigator for i
CVE-2026-17110 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in SQL
CVE-2026-17642 8.8 HIGH IBM i is Affected By Remote Code Execution Vulnerabilities [, ]
CVE-2026-18847 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Navigator for i
CVE-2026-17082 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in the Debug Server
CVE-2026-18713 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Navigator for i
CVE-2026-13105 8.8 HIGH IBM i Access Client Solutions (ACS) is Affected By Multiple Vulnerabilities
CVE-2026-18683 8.8 HIGH IBM i is Affected By privilege escalation in Navigator for i
CVE-2026-13361 8.8 HIGH IBM Informix Server Vulnerability in SQL Interface Handler Could Allow Remote Code Executi
CVE-2026-18669 8.8 HIGH IBM i is Affected By A Privilege Escalation Vulnerability []
CVE-2026-16906 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Domain Name System
CVE-2026-16856 8.8 HIGH IBM i is Affected By Multiple Vulnerabilities in Domain Name System
CVE-2026-17417 8.8 HIGH IBM i is Affected By Remote Code Execution Vulnerabilities [, ]
CVE-2026-12004 8.7 HIGH Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Ve
CVE-2026-17418 8.5 HIGH IBM i is Affected By Multiple Vulnerabilities in SQL

Showing top 20 of 68 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: i
Same vendor: IBM
Same weakness: CWE-79

V. Comments for CVE-2026-18099

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