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CVE-2026-96284 is a lower-severity Flatpak vulnerability fixed in Flatpak 1.16.4. It permits arbitrary reading of files that are readable by the flatpak or _flatpak system user. The available information does not identify the vulnerable function or the underlying flaw mechanism.
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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.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A network-reachable, low-complexity vulnerability with no required privileges or user interaction, rated CVSS v3.0 critical (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The referenced Nessus plugin identifies it as unpatched on Ubuntu Linux 18.04, 20.04, 22.04, and 24.04 LTS systems, including Flatpak-related CPE coverage.
A lower-severity Flatpak vulnerability permitting arbitrary reads of files readable by the flatpak or _flatpak system account.
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.