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Advisories

LangAlpha through 2026.09.07 Indirect Prompt Injection RCE via Bash and ExecuteCode

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Severity
high
Date
Affecting

  • LangAlpha <= 2026.09.07

CWE
  • CWE-1427 Improper Neutralization of Input Used for LLM Prompting
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Noy Pearl, Michael Sromin, Ophir Dror
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.

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