CVE-2026-33154

Publication date 20 March 2026

Last updated 6 May 2026

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python-dynaconf	26.04 LTS resolute	Fixed 3.2.12-1ubuntu0.1~esm1
	25.10 questing	Fixed 3.1.7-2ubuntu0.25.10.1
	24.04 LTS noble	Fixed 3.1.7-2ubuntu0.24.04.1
	22.04 LTS jammy	Fixed 3.1.7-1ubuntu0.1~esm1

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Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-8231-1
Dynaconf vulnerability
6 May 2026