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CVE-2026-69253 is a code-injection vulnerability in Flowise versions prior to 3.1.3. The AgentAsTool, ChatflowTool, and ExecuteFlow custom-tool components constructed JavaScript for execution in an in-process vm2 sandbox by directly interpolating the user-controlled baseURL value into a quoted JavaScript string. The isValidURL check did not prevent URL values containing characters that could terminate the string context. An authenticated attacker could supply a syntactically valid crafted baseURL, inject JavaScript into the generated sandboxed script, and leverage exposed dependencies to escape vm2.
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What an attacker gets, and what they’ve been doing with it.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical authenticated code injection vulnerability in Flowise that allows sandbox escape from vm2 and remote code execution on the Flowise server.
A critical Flowise code-injection and sandbox-escape vulnerability affecting AgentAsTool, ChatflowTool, and ExecuteFlow custom-tool components before version 3.1.3. A crafted, valid-looking baseURL can break out of a JavaScript string in the vm2 sandbox, enabling arbitrary code execution on the Flowise server by an authenticated user.
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.