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CVE-2026-66027 is a broken access control vulnerability affecting Suna before version 0.9.102. The flaw is present in the message queue API, where missing ownership validation and insufficient account isolation allow an authenticated user to access and manipulate queue resources associated with other users. Successful exploitation enables cross-tenant or cross-account access to pending prompt queues and session data, including the ability to read or delete another user’s sessions and inject arbitrary prompts into another user’s session queue. Because the background drainer forwards queued messages to a victim’s active AI agent, attacker-supplied prompts can be processed under the victim’s credentials and permissions.
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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.
4 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.