Product:

Urllib3

(Python)
Repositories

Unknown:

This might be proprietary software.
#Vulnerabilities 12
Date Id Summary Products Score Patch Annotated
2023-10-04 CVE-2023-43804 urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn't treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly. This issue has been patched in urllib3 version 1.26.17 or 2.0.5. Debian_linux, Fedora, Urllib3 8.1
2020-03-06 CVE-2020-7212 The _encode_invalid_chars function in util/url.py in the urllib3 library 1.25.2 through 1.25.7 for Python allows a denial of service (CPU consumption) because of an inefficient algorithm. The percent_encodings array contains all matches of percent encodings. It is not deduplicated. For a URL of length N, the size of percent_encodings may be up to O(N). The next step (normalize existing percent-encoded bytes) also takes up to O(N) for each step, so the total time is O(N^2). If... Urllib3 7.5
2020-09-30 CVE-2020-26137 urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116. Ubuntu_linux, Debian_linux, Communications_cloud_native_core_network_function_cloud_native_environment, Zfs_storage_appliance_kit, Urllib3 6.5
2021-03-15 CVE-2021-28363 The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted. Fedora, Peoplesoft_enterprise_peopletools, Urllib3 6.5
2021-06-29 CVE-2021-33503 An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect. Fedora, Enterprise_manager_ops_center, Instantis_enterprisetrack, Zfs_storage_appliance_kit, Urllib3 7.5
2023-10-17 CVE-2023-45803 urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could accept a request body (like `POST`) to `GET` as is required by HTTP RFCs. Although this behavior is not specified in the section for redirects, it can be inferred by piecing together information from different sections and we have observed the behavior in... Fedora, Urllib3 4.2
2018-12-11 CVE-2018-20060 urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext. Fedora, Urllib3 9.8
2019-04-15 CVE-2019-11236 In the urllib3 library through 1.24.1 for Python, CRLF injection is possible if the attacker controls the request parameter. Urllib3 6.1
2019-04-18 CVE-2019-11324 The urllib3 library before 1.24.2 for Python mishandles certain cases where the desired set of CA certificates is different from the OS store of CA certificates, which results in SSL connections succeeding in situations where a verification failure is the correct outcome. This is related to use of the ssl_context, ca_certs, or ca_certs_dir argument. Ubuntu_linux, Urllib3 7.5
2023-10-15 CVE-2018-25091 urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive). Urllib3 6.1