Update dependency urllib3 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
urllib3 (changelog)	==2.0.2 -> ==2.2.2
urllib3 (changelog)	==1.26.15 -> ==1.26.19

GitHub Vulnerability Alerts

CVE-2023-43804

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.

Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.

Affected usages

We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:

• Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
• Using the Cookie header on requests, which is mostly typical for impersonating a browser.
• Not disabling HTTP redirects
• Either not using HTTPS or for the origin server to redirect to a malicious origin.

Remediation

• Upgrading to at least urllib3 v1.26.17 or v2.0.6
• Disabling HTTP redirects using redirects=False when sending requests.
• Not using the Cookie header.

CVE-2023-45803

urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 303 "See Other" 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 the behavior of removing the request body 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 other major HTTP client implementations like curl and web browsers.

From RFC 9110 Section 9.3.1:

A client SHOULD NOT generate content in a GET request unless it is made directly to an origin server that has previously indicated, in or out of band, that such a request has a purpose and will be adequately supported.

Affected usages

Because the vulnerability requires a previously trusted service to become compromised in order to have an impact on confidentiality we believe the exploitability of this vulnerability is low. Additionally, many users aren't putting sensitive data in HTTP request bodies, if this is the case then this vulnerability isn't exploitable.

Both of the following conditions must be true to be affected by this vulnerability:

• If you're using urllib3 and submitting sensitive information in the HTTP request body (such as form data or JSON)
• The origin service is compromised and starts redirecting using 303 to a malicious peer or the redirected-to service becomes compromised.

Remediation

You can remediate this vulnerability with any of the following steps:

• Upgrade to a patched version of urllib3 (v1.26.18 or v2.0.7)
• Disable redirects for services that you aren't expecting to respond with redirects with redirects=False.
• Disable automatic redirects with redirects=False and handle 303 redirects manually by stripping the HTTP request body.

CVE-2024-37891

When using urllib3's proxy support with ProxyManager, the Proxy-Authorization header is only sent to the configured proxy, as expected.

However, when sending HTTP requests without using urllib3's proxy support, it's possible to accidentally configure the Proxy-Authorization header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the Proxy-Authorization HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects.

Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the Proxy-Authorization header during cross-origin redirects to avoid the small chance that users are doing this on accident.

Users should use urllib3's proxy support or disable automatic redirects to achieve safe processing of the Proxy-Authorization header, but we still decided to strip the header by default in order to further protect users who aren't using the correct approach.

Affected usages

We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:

• Setting the Proxy-Authorization header without using urllib3's built-in proxy support.
• Not disabling HTTP redirects.
• Either not using an HTTPS origin server or for the proxy or target origin to redirect to a malicious origin.

Remediation

• Using the Proxy-Authorization header with urllib3's ProxyManager.
• Disabling HTTP redirects using redirects=False when sending requests.
• Not using the Proxy-Authorization header.

---

Release Notes

urllib3/urllib3 (urllib3)

v2.2.2

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==================

• Added the Proxy-Authorization header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect.
• Allowed passing negative integers as amt to read methods of http.client.HTTPResponse as an alternative to None. (#&#8203;3122 <https://github.com/urllib3/urllib3/issues/3122>__)
• Fixed return types representing copying actions to use typing.Self. (#&#8203;3363 <https://github.com/urllib3/urllib3/issues/3363>__)

v2.2.1

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==================

• Fixed issue where InsecureRequestWarning was emitted for HTTPS connections when using Emscripten. (#&#8203;3331 <https://github.com/urllib3/urllib3/issues/3331>__)
• Fixed HTTPConnectionPool.urlopen to stop automatically casting non-proxy headers to HTTPHeaderDict. This change was premature as it did not apply to proxy headers and HTTPHeaderDict does not handle byte header values correctly yet. (#&#8203;3343 <https://github.com/urllib3/urllib3/issues/3343>__)
• Changed InvalidChunkLength to ProtocolError when response terminates before the chunk length is sent. (#&#8203;2860 <https://github.com/urllib3/urllib3/issues/2860>__)
• Changed ProtocolError to be more verbose on incomplete reads with excess content. (#&#8203;3261 <https://github.com/urllib3/urllib3/issues/3261>__)

v2.2.0

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==================

• Added support for Emscripten and Pyodide <https://urllib3.readthedocs.io/en/latest/reference/contrib/emscripten.html>, including streaming support in cross-origin isolated browser environments where threading is enabled. (#&#8203;2951 <https://github.com/urllib3/urllib3/issues/2951>)
• Added support for HTTPResponse.read1() method. (#&#8203;3186 <https://github.com/urllib3/urllib3/issues/3186>__)
• Added rudimentary support for HTTP/2. (#&#8203;3284 <https://github.com/urllib3/urllib3/issues/3284>__)
• Fixed issue where requests against urls with trailing dots were failing due to SSL errors
  when using proxy. (#&#8203;2244 <https://github.com/urllib3/urllib3/issues/2244>__)
• Fixed HTTPConnection.proxy_is_verified and HTTPSConnection.proxy_is_verified
  to be always set to a boolean after connecting to a proxy. It could be
  None in some cases previously. (#&#8203;3130 <https://github.com/urllib3/urllib3/issues/3130>__)
• Fixed an issue where headers passed in a request with json= would be mutated (#&#8203;3203 <https://github.com/urllib3/urllib3/issues/3203>__)
• Fixed HTTPSConnection.is_verified to be set to False when connecting
  from a HTTPS proxy to an HTTP target. It was set to True previously. (#&#8203;3267 <https://github.com/urllib3/urllib3/issues/3267>__)
• Fixed handling of new error message from OpenSSL 3.2.0 when configuring an HTTP proxy as HTTPS (#&#8203;3268 <https://github.com/urllib3/urllib3/issues/3268>__)
• Fixed TLS 1.3 post-handshake auth when the server certificate validation is disabled (#&#8203;3325 <https://github.com/urllib3/urllib3/issues/3325>__)
• Note for downstream distributors: To run integration tests, you now need to run the tests a second
  time with the --integration pytest flag. (#&#8203;3181 <https://github.com/urllib3/urllib3/issues/3181>__)

v2.1.0

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==================

• Removed support for the deprecated urllib3[secure] extra. (#&#8203;2680 <https://github.com/urllib3/urllib3/issues/2680>__)
• Removed support for the deprecated SecureTransport TLS implementation. (#&#8203;2681 <https://github.com/urllib3/urllib3/issues/2681>__)
• Removed support for the end-of-life Python 3.7. (#&#8203;3143 <https://github.com/urllib3/urllib3/issues/3143>__)
• Allowed loading CA certificates from memory for proxies. (#&#8203;3065 <https://github.com/urllib3/urllib3/issues/3065>__)
• Fixed decoding Gzip-encoded responses which specified x-gzip content-encoding. (#&#8203;3174 <https://github.com/urllib3/urllib3/issues/3174>__)

v2.0.7

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==================

• Made body stripped from HTTP requests changing the request method to GET after HTTP 303 "See Other" redirect responses.

v2.0.6

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==================

• Added the Cookie header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect.

v2.0.5

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==================

• Allowed pyOpenSSL third-party module without any deprecation warning. (#&#8203;3126 <https://github.com/urllib3/urllib3/issues/3126>__)
• Fixed default blocksize of HTTPConnection classes to match high-level classes. Previously was 8KiB, now 16KiB. (#&#8203;3066 <https://github.com/urllib3/urllib3/issues/3066>__)

v2.0.4

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==================

• Added support for union operators to HTTPHeaderDict (#&#8203;2254 <https://github.com/urllib3/urllib3/issues/2254>__)
• Added BaseHTTPResponse to urllib3.__all__ (#&#8203;3078 <https://github.com/urllib3/urllib3/issues/3078>__)
• Fixed urllib3.connection.HTTPConnection to raise the http.client.connect audit event to have the same behavior as the standard library HTTP client (#&#8203;2757 <https://github.com/urllib3/urllib3/issues/2757>__)
• Relied on the standard library for checking hostnames in supported PyPy releases (#&#8203;3087 <https://github.com/urllib3/urllib3/issues/3087>__)

v2.0.3

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==================

• Allowed alternative SSL libraries such as LibreSSL, while still issuing a warning as we cannot help users facing issues with implementations other than OpenSSL. (#&#8203;3020 <https://github.com/urllib3/urllib3/issues/3020>__)
• Deprecated URLs which don't have an explicit scheme (#&#8203;2950 <https://github.com/urllib3/urllib3/pull/2950>_)
• Fixed response decoding with Zstandard when compressed data is made of several frames. (#&#8203;3008 <https://github.com/urllib3/urllib3/issues/3008>__)
• Fixed assert_hostname=False to correctly skip hostname check. (#&#8203;3051 <https://github.com/urllib3/urllib3/issues/3051>__)

---

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