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CVE-2026-96283 is an authorization flaw in Flatpak's system helper pull-cancellation handling. A user can invoke the cancellation operation against a pull initiated by another user. Instead of cancelling that pull, the helper removes it from its internal tracking, preventing the legitimate owner from subsequently cancelling the still-running pull. Flatpak 1.16.4 corrects this behavior.
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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.
An unpatched, network-accessible critical vulnerability affecting Canonical Ubuntu Linux LTS releases 18.04 through 24.04. The supplied CVSS v3 vector indicates low-complexity, unauthenticated remote exploitation without user interaction and potential complete compromise of confidentiality, integrity, and availability.
A low-severity Flatpak flaw in which an authorized local user can invoke CancelPull on another user's pull operation, causing the operation to be removed from internal tracking without actually being cancelled, preventing it from being stopped.
A lower-severity Flatpak denial-of-service or workflow-interference issue allowing one user to prevent cancellation of another user's flatpak-system-helper pull operation.
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.