Summary
Server crash if running Python 3.10 w/ Sanic 20.12
!!! ONLY APPLIES TO VERSIONS PRIOR TO Sanic v20.12 WHEN USING Python 3.10 !!!
Sanic v20.12 officially supports Python versions 3.6, 3.7, 3.8, and 3.9. However, if you accidentally run it with version 3.10 (which is not supported by Sanic 20.12), your server is prone to crashing on an incoming web request.
Workarounds
Use a supported version of Python (v3.6 - v3.9)
References
In asyncio, the explicit passing of a loop argument has been deprecated and will be removed in version 3.10 for the following: ... asyncio.Event
For more information
If you have any questions or comments about this advisory:
- Open an issue in the community forums
- Ping us on the Discord server
Impact
Anyone running Sanic server between 0.1.7 and 20.12 using Python 3.10.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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Frequently Asked Questions
- What is GHSA-7P79-6X2V-5H88? GHSA-7P79-6X2V-5H88 is a high-severity security vulnerability in sanic (pip), affecting versions >= 0.1.7, < 20.12.6. It is fixed in 20.12.6.
- Which versions of sanic are affected by GHSA-7P79-6X2V-5H88? sanic (pip) versions >= 0.1.7, < 20.12.6 is affected.
- Is there a fix for GHSA-7P79-6X2V-5H88? Yes. GHSA-7P79-6X2V-5H88 is fixed in 20.12.6. Upgrade to this version or later.
- Is GHSA-7P79-6X2V-5H88 exploitable, and should I be worried? Whether GHSA-7P79-6X2V-5H88 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-7P79-6X2V-5H88 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-7P79-6X2V-5H88? Upgrade
sanicto 20.12.6 or later.