AIKIDO-2026-10478
ai-prompter is vulnerable to Server-Side Template Injection (SSTI)
92
Critical Risk
This Affects:
ai-prompterTL;DR
Prompt rendering uses Jinja2 with a standard Environment, so template expressions are evaluated with full Python reachability when caller-controlled template text or fragments are passed into Prompter. A crafted template can invoke dangerous attribute chains and achieve arbitrary code execution in the host process. The change replaces default and dynamically constructed environments with jinja2.sandbox.SandboxedEnvironment, blocking typical sandbox-escape gadget paths while still rendering normal prompts.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
ai-prompter is vulnerable to Server-Side Template Injection (SSTI) in versions 0.1.0 - 0.3.2.
How to fix this
Upgrade the ai-prompter library to the patch version.
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