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CVE-2026-34911 is a high-severity path traversal vulnerability in Ubiquiti UniFi OS affecting a broad range of UniFi consoles, gateways, servers, and storage appliances. The flaw allows an authenticated attacker with low privileges and network access to craft requests that escape intended directory boundaries in the UniFi OS management interface and read files from the underlying Linux-based operating system. Public reporting indicates the issue is a file-read traversal rather than direct code execution, and that traversal sequences in request paths or parameters can be used to access sensitive files outside the restricted web application scope. Public materials do not disclose the exact vulnerable endpoint or the precise role required beyond low-privileged authenticated access.
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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.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability affecting multiple Ubiquiti UniFi OS products and related devices.
A prior Bulletin 064 UniFi OS vulnerability mentioned only in vendor security history context.
A Bulletin 064 vulnerability mentioned only in a summary list without substantive discussion.
A separate low-privilege path traversal file-read vulnerability in the UniFi OS device family.
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.