CVE-2026-44209
High · 7.5CVSS
7.5
EPSS
0.7%
Published
May 26, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-96392 Improper Neutralization of Special Elements Used in a Template Engine vulnerability in… CWE-1336
- CVE-2026-96355 Improper Neutralization of Special Elements Used in a Template Engine vulnerability in… CWE-1336
- CVE-2026-104851 fsspec is a specification and Python implementation framework for filesystem interfaces. CWE-1336
- CVE-2026-9160 Improper neutralization of special elements used in a template engine vulnerability in… CWE-1336
- CVE-2026-19584 Velociraptor allows for the creation of notebook backups in its default enabled daily… CWE-1336
- CVE-2026-75650 Adobe Commerce is affected by an Improper Neutralization of Special Elements Used in a… CWE-1336
- CVE-2026-52762 YesWiki is a wiki system written in PHP. CWE-1336
- CVE-2026-85654 Improper neutralization of special elements used in a template engine in the CDK… CWE-1336