What’s Vulnerable › Vulnerabilities

CVE-2026-33154: dynaconf Affected by Remote Code Execution (RCE) via Insecure Template Evaluation in @jinja Resolver

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-20 · updated 2026-06-17
• Weakness: CWE-94

Description

dynaconf is a configuration management tool for Python. Prior to version 3.2.13, Dynaconf is vulnerable to Server-Side Template Injection (SSTI) due to unsafe template evaluation in the @Jinja resolver. When the jinja2 package is installed, Dynaconf evaluates template expressions embedded in configuration values without a sandboxed environment. This issue has been patched in version 3.2.13.

Affected products

• dynaconf: before 3.2.13 — fixed in 3.2.13

How to fix

Upgrade to a fixed version: dynaconf 3.2.13. Check the vendor advisory for mitigations.

References

• https://github.com/dynaconf/dynaconf/commit/2fbb45ee36b8c0caa5b924fe19f3c1a5e8603fa7
• https://github.com/dynaconf/dynaconf/releases/tag/3.2.13
• https://github.com/dynaconf/dynaconf/security/advisories/GHSA-pxrr-hq57-q35p

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