CVE-2021-41945: Input Validation
First published: Thu Apr 28 2022(Updated: )
Encode OSS httpx < 0.23.0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/httpx | <0.23.0 | 0.23.0 |
| Encode Httpx | <0.23.0 | |
| <0.23.0 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-41945
- https://github.com/encode/httpx/issues/2184
- https://gist.github.com/lebr0nli/4edb76bbd3b5ff993cf44f2fbce5e571
- https://github.com/encode/httpx/discussions/1831
- https://github.com/encode/httpx/pull/2185
- https://github.com/encode/httpx
- https://github.com/advisories/GHSA-h8pj-cxx2-jfg2 (Advisory)
- https://github.com/encode/httpx/releases/tag/0.23.0
- https://github.com/pypa/advisory-database/tree/main/vulns/httpx/PYSEC-2022-183.yaml
- https://github.com/encode/httpx/pull/2185/commits/e3c495a32c63d8aa7f1bcf3b7b27ee1a0ff428e1
- https://github.com/encode/httpx/commit/e9b0c85dd4f4e4469c57c4b38e5101fd12081b5c
- http://encode.com
Frequently Asked Questions
What is CVE-2021-41945?
CVE-2021-41945 is a vulnerability affecting Encode OSS httpx version 0.23.0 and below, where improper input validation in `httpx.URL`, `httpx.Client`, and some functions using `httpx.URL.copy_with` can lead to security issues.
How severe is CVE-2021-41945?
CVE-2021-41945 has a severity rating of 9.1 (Critical).
Which software versions are affected by CVE-2021-41945?
The affected software versions include Encode OSS httpx version 0.23.0 and below, as well as Encode Httpx version up to exclusive 0.23.0.
How can I fix the CVE-2021-41945 vulnerability?
To fix the CVE-2021-41945 vulnerability, update the httpx package to version 0.23.0 or higher.
Where can I find more information about CVE-2021-41945?
You can find more information about CVE-2021-41945 at the following references: [NVD](https://nvd.nist.gov/vuln/detail/CVE-2021-41945), [GitHub Issue](https://github.com/encode/httpx/issues/2184), [Gist](https://gist.github.com/lebr0nli/4edb76bbd3b5ff993cf44f2fbce5e571).
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