RCE in Dynaconf
CVE-2026-33154
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000
Affected products
- Dynaconf — versions < 3.2.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/dynaconf/dynaconf/security/advisories/GHSA-pxrr-hq57-q35p (Exploit, Vendor Advisory)
- github.com/dynaconf/dynaconf/commit/2fbb45ee36b8c0caa5b924fe19f3c1a5e8603fa7 (Patch)
- github.com/dynaconf/dynaconf/releases/tag/3.2.13 (Release Notes)
Frequently asked questions
- What is CVE-2026-33154?
- CVE-2026-33154 is a high-severity vulnerability in Dynaconf, classified under Code Injection. CVSS score: 7.5/10. Published 2026-03-20.
- How severe is CVE-2026-33154?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2026-33154 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.