CVE-2026-44209Banks: Critical Remote Code Execution (RCE) via Jinja2 SSTI

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/masci/banks/security/advisories/GHSA-gphh-9q3h-jgpp
• https://github.com/masci/banks/pull/74
• https://access.redhat.com/security/cve/CVE-2026-44209
• https://bugzilla.redhat.com/show_bug.cgi?id=2481713
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44209.json