How severe is CVE-2024-56201?

No CVSS score has been assigned to CVE-2024-56201 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2024-56201?

CVE-2024-56201 affects the following packages: jinja2 (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2024-56201?

Update jinja2 to 3.1.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-56201 is resolved across your whole dependency graph.

How do I detect CVE-2024-56201 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jinja2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2024-56201 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2024-56201 actively exploited in the wild?

No public exploit code has been indexed for CVE-2024-56201 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2024-56201?

CVE-2024-56201 has an EPSS (Exploit Prediction Scoring System) score of 0.3%, placing it in the 24th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2024-56201?

CVE-2024-56201 is classified as CWE-150 (CWE-150). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2024-56201 published, and has it been updated?

CVE-2024-56201 was published on December 23, 2024 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2024-56201: jinja2 — Fixed in 3.1.5

Exploitation Status

No confirmed exploitation observed yet

A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-56201.

EPSS Exploitation Probability

via FIRST.org ↗

0.3%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs24th percentile — riskier than 24% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍jinja2

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Jinja is an extensible templating engine. In versions on the 3.x branch prior to 3.1.5, a bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename. This vulnerability is fixed in 3.1.5.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`jinja2`	≥ 3.0.0&&< 3.1.5	3.1.5`pip install --upgrade 'jinja2==3.1.5'`

Affected Products

1 product · 1 configurations

Application

jinjapalletsprojects

≥ 3.0.0 && < 3.1.5

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jinja2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update jinja2 to 3.1.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-56201 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant

This vulnerability has rated as a IMPORTANT flaw because an attacker controlling both the template content and filename to execute arbitrary Python code, bypassing the sandbox.

Workaround published by Red Hat

To mitigate this vulnerabilty restrict user-controlled template filenames, ensuring they follow a predefined templates.

Source: Red Hat security advisory for CVE-2024-56201 (CC BY 4.0)

Product	Fixed in	Advisory
Ansible Automation Platform Execution Environments	`ansible-automation-platform/ee-minimal-rhel8:2.12.10-57`	RHSA-2025:0753
Ansible Automation Platform Execution Environments	`ansible-automation-platform/ee-minimal-rhel8:2.12.10-59`	RHSA-2025:1101
Discovery 1 for RHEL 9	`discovery/discovery-server-rhel9:1.12.0-1`	RHSA-2025:1249
Ironic content for Red Hat OpenShift Container Platform 4.12	`python-jinja2-0:3.0.1-6.el9.2`	RHSA-2025:0834
Ironic content for Red Hat OpenShift Container Platform 4.13	`python-jinja2-0:3.0.1-6.el9.2`	RHSA-2025:1118
Red Hat Ansible Automation Platform 2.4 for RHEL 8	`automation-controller-0:4.5.17-1.el8ap`	RHSA-2025:0721
Red Hat Ansible Automation Platform 2.4 for RHEL 8	`ansible-automation-platform-24/lightspeed-rhel8-operator:2.4-33`	RHSA-2025:0722
Red Hat Ansible Automation Platform 2.5 for RHEL 8	`ansible-automation-platform-25/lightspeed-rhel8:2.5.250107-1`	RHSA-2025:0341

Ubuntu

USN-7244-1Ubuntu USN-7343-1Ubuntu

Frequently Asked Questions

Jinja is an extensible templating engine. In versions on the 3.x branch prior to 3.1.5, a bug in the Jinja compiler allows an attacker that controls both the content and filename of a template to execute arbitrary Python code, regardless of if Jinja's sandbox is used. To exploit the vulnerability, an attacker needs to control both the filename and the contents of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates where the template author can also choose the template filename. T

O3 Security · Impact-Aware SCA

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CVE-2024-56201 — jinja2