High severity8.1NVD Advisory· Published Oct 20, 2026
CVE-2026-109440
CVE-2026-109440
Description
LangAlpha through 2026.09.07 contains an indirect prompt injection vulnerability that allows remote attackers to execute shell commands or Python by planting instructions in web content retrieved by the agent. Because Bash and ExecuteCode lack an allow-list and human-in-the-loop approval, attackers can run code in the workspace sandbox and exfiltrate vault secrets from _internal/.vault_secrets.json.
Affected products
2Patches
Vulnerability mechanics
References
3News mentions
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