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CVE-2026-17268 is an authorization bypass vulnerability affecting IBM i Navigator for i on IBM i versions 7.3, 7.4, 7.5, and 7.6. The flaw is caused by improper validation of a session token, allowing a remote authenticated attacker to bypass security restrictions. Available reporting indicates the weakness is associated with capture-replay of a session token, suggesting the application does not sufficiently validate token authenticity, freshness, or binding to the originating session context before honoring privileged requests.
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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.
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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.
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.