Critical severity · published Apr 28, 2022
CVE-2021-41945
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`
9.1
CVSS
2.1%
EPSS
No
On KEV
Description
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`.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HT
Httpx · Encode
before 0.23.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41945
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41945
Exploit
https://gist.github.com/lebr0nli/4edb76bbd3b5ff993cf44f2fbce5e571
Product
https://github.com/encode/httpx
Exploit
https://github.com/encode/httpx/discussions/1831
Exploit
https://github.com/encode/httpx/issues/2184
Release Notes
https://github.com/encode/httpx/releases/tag/0.23.0