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CVE-2026-22559 is an Improper Input Validation vulnerability in UniFi Network Server affecting version 10.1.85 and earlier. Based on the available vendor description, successful exploitation requires social engineering: the account owner must be induced to click a malicious link. If triggered, the flaw may allow unauthorized access to the victim's account. Supporting context indicates this issue was disclosed alongside related UniFi portal file-read issues, and one mention describes CVE-2026-22559 as a symbolic-link variant of the portal file-read bug; however, the precise vulnerable function, request path, and code-level root cause for CVE-2026-22559 are not provided in the supplied material.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A symbolic link variant of the UniFi portal file-read issue that requires an administrator to click a malicious link.
An improper input validation vulnerability in UniFi Network Server that may allow unauthorized access to an account if a user is socially engineered into clicking a malicious link.
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.