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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-44209

Banks: Critical Remote Code Execution (RCE) via Jinja2 SSTI

Description

Banks generates meaningful LLM prompts using a template language that makes sense. Prior to 2.4.2, banks uses jinja2.Environment() (unsandboxed) to render prompt templates. Applications that pass user-supplied strings as the template argument to Prompt() are vulnerable to Server-Side Template Injection (SSTI), which can lead to Remote Code Execution (RCE) on the host system. This vulnerability is fixed in 2.4.2.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

masci banks

  • < 2.4.2affected

References