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CVE-2020-35681

7.4 · HIGH

Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope.

Published Feb 22, 2021CWE-200EPSS 2.66%

Overview

CVE-2020-35681 is a high-severity vulnerability. It was published on February 22, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Django Channels 3.x before 3.0.3 allows remote attackers to obtain sensitive information from a different request scope. The legacy channels.http.AsgiHandler class, used for handling HTTP type requests in an ASGI environment prior to Django 3.0, did not correctly separate request scopes in Channels 3.0. In many cases this would result in a crash but, with correct timing, responses could be sent to the wrong client, resulting in potential leakage of session identifiers and other sensitive data. Note that this affects only the legacy Channels provided class, and not Django's similar ASGIHandler, available from Django 3.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refchannels.readthedocs.io/en/stable/releases/3.0.3.htmlRefchannels.readthedocs.io/en/stable/releases/index.htmlGitHubgithub.com/django/channels/releasesRefchannels.readthedocs.io/en/stable/releases/3.0.3.htmlRefchannels.readthedocs.io/en/stable/releases/index.htmlGitHubgithub.com/django/channels/releases

How CyberStrike helps

Frequently asked questions

What is CVE-2020-35681?

CVE-2020-35681 is a high-severity vulnerability. It was published on February 22, 2021 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2020-35681?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-35681?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-35681?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-35681 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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