CVE-2026-44209

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Source
https://cve.org/CVERecord?id=CVE-2026-44209
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44209.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44209
Aliases
Published
2026-05-26T20:46:56.002Z
Modified
2026-07-27T03:56:31.966945585Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Banks: Critical Remote Code Execution (RCE) via Jinja2 SSTI
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-1336"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44209.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/masci/banks

Affected ranges

Type
GIT
Repo
https://github.com/masci/banks
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3c9d09ddccf20dc020853c9a68306d373a31bbab
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.4.2"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.5.0
v0.6.0
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.2.1
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.6.1
v1.7.0
v1.7.1
v1.8.0
v2.*
v2.0.0
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.2.0
v2.3.0
v2.4.0
v2.4.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44209.json"