CVE-2026-33154: dynaconf Affected by Remote Code Execution (RCE) via Insecure Template Evaluation in @jinja Resolver
Vulnerability summary
CVE-2026-33154 is a high (CVSS 8.1) Improper Control of Generation of Code vulnerability in dynaconf. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 45.2% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 1Timeline
- 20-03-2026PublishedVulnerability first disclosed.
- 27-03-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
6 scores · 6 sources · 1 version- CVE.orgCNA7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · PypiEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.54%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.53% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundDynaconf
Maturity: poc
Weaknesses
CWE · root cause- CWE-94Improper Control of Generation of CodeThe product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
- CWE-1336Improper Neutralization of Special Elements Used in a Template EngineThe product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.
- CWE-78Improper Neutralization of Special Elements used in an OS CommandThe product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component.
Affected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Opensuse2 products
- python-dynaconf&distro=openSUSE Leap 16.0< 3.2.5-bp160.2.1
- python-dynaconf&distro=openSUSE Tumbleweed< 3.2.13-1.1
Chainguard1 product
- awx< 24.6.1-r31
Debian1 product
- python-dynaconfAll versions (No fix recorded) | < 3.1.7-2+deb13u1 | < 3.2.13-1
Dynaconf1 product
- dynaconf< 3.2.13
PyPI1 product
- dynaconf< 3.2.13
Ubuntu1 product
- python-dynaconf< 3.1.7-1ubuntu0.1~esm1 | < 3.1.7-2ubuntu0.24.04.1 | < 3.1.7-2ubuntu0.25.10.1 | All versions (No fix recorded) | < 3.2.12-1ubuntu0.1~esm1
6 vendors · 7 products
References
12 links- github.com/dynaconf/dynaconf/security/advisories/GHSA-pxrr-hq57-q35pX Refsource CONFIRMWEBEVIDENCEREPORTAdvisoryExploitVendor Advisory
- github.com/dynaconf/dynaconf/commit/2fbb45ee36b8c0caa5b924fe19f3c1a5e8603fa7X Refsource MISCWEBFIXREPORTPatch
- github.com/dynaconf/dynaconfPACKAGE
