Bug 2449774 (CVE-2026-33154)

Summary: CVE-2026-33154 dynaconf: jinja2: Dynaconf: Arbitrary code execution via Server-Side Template Injection
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dschmidt, erezende, jlanda, jmitchel, jwong, kshier, omaciel, pbohmill, simaishi, smcdonal, stcannon, teagle, ttakamiy, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in dynaconf, a Python configuration management tool. This Server-Side Template Injection (SSTI) vulnerability occurs due to unsafe template evaluation in the @Jinja resolver when the jinja2 package is installed. A remote attacker could exploit this by embedding malicious template expressions in configuration values, which are then processed without a sandboxed environment. This could lead to arbitrary code execution on the affected system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2450248, 2450249    
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Description OSIDB Bzimport 2026-03-20 21:01:58 UTC
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.