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CVE-2021-39207

8.4 · HIGH

parlai is a framework for training and evaluating AI models on a variety of openly available dialogue datasets.

Published Sep 10, 2021CWE-502EPSS 1.79%

Overview

CVE-2021-39207 is a high-severity vulnerability. It was published on September 10, 2021 and has a CVSS 3.1 base score of 8.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

parlai is a framework for training and evaluating AI models on a variety of openly available dialogue datasets. In affected versions the package is vulnerable to YAML deserialization attack caused by unsafe loading which leads to Arbitary code execution. This security bug is patched by avoiding unsafe loader users should update to version above v1.1.0. If upgrading is not possible then users can change the Loader used to SafeLoader as a workaround. See commit 507d066ef432ea27d3e201da08009872a2f37725 for details.

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

GitHubgithub.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879GitHubgithub.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725GitHubgithub.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mggGitHubgithub.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879GitHubgithub.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725GitHubgithub.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg

How CyberStrike helps

Frequently asked questions

What is CVE-2021-39207?

CVE-2021-39207 is a high-severity vulnerability. It was published on September 10, 2021 and has a CVSS 3.1 base score of 8.4 (HIGH).

How severe is CVE-2021-39207?

This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-39207?

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-2021-39207?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-39207 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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