Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/masci/banks/pull/74
- https://github.com/masci/banks/security/advisories/GHSA-gphh-9q3h-jgpp
- https://access.redhat.com/security/cve/CVE-2026-44209
- https://bugzilla.redhat.com/show_bug.cgi?id=2481713
- https://github.com/masci/banks/security/advisories/GHSA-gphh-9q3h-jgpp
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44209.json
FAQ
What is CVE-2026-44209?
CVE-2026-44209 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-44209?
CVE-2026-44209 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44209?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.