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CVE-2026-18098 is an XML injection vulnerability affecting IBM i Navigator for i on IBM i versions 7.3, 7.4, 7.5, and 7.6. The flaw allows a remote authenticated attacker to exploit improper handling of XML input over the network. Successful exploitation can expose sensitive information and compromise system integrity. Available scoring information indicates low attack complexity, no user interaction requirement, and exploitation by an attacker with low privileges.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An XML injection vulnerability in IBM i that could allow a remote authenticated attacker to obtain sensitive information and compromise system integrity.
An XML injection flaw in IBM i Navigator for i that could allow a remote authenticated attacker to obtain sensitive information and compromise system integrity.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.