Update dependency requests to v2.31.0 [SECURITY] - autoclosed

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
requests (source, changelog)	`==2.23.0` -> `==2.31.0`

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GitHub Vulnerability Alerts

CVE-2023-32681

Impact

Since Requests v2.3.0, Requests has been vulnerable to potentially leaking Proxy-Authorization headers to destination servers, specifically during redirects to an HTTPS origin. This is a product of how rebuild_proxies is used to recompute and reattach the Proxy-Authorization header to requests when redirected. Note this behavior has only been observed to affect proxied requests when credentials are supplied in the URL user information component (e.g. https://username:password@proxy:8080).

Current vulnerable behavior(s):

HTTP → HTTPS: leak
HTTPS → HTTP: no leak
HTTPS → HTTPS: leak
HTTP → HTTP: no leak

For HTTP connections sent through the proxy, the proxy will identify the header in the request itself and remove it prior to forwarding to the destination server. However when sent over HTTPS, the Proxy-Authorization header must be sent in the CONNECT request as the proxy has no visibility into further tunneled requests. This results in Requests forwarding the header to the destination server unintentionally, allowing a malicious actor to potentially exfiltrate those credentials.

The reason this currently works for HTTPS connections in Requests is the Proxy-Authorization header is also handled by urllib3 with our usage of the ProxyManager in adapters.py with proxy_manager_for. This will compute the required proxy headers in proxy_headers and pass them to the Proxy Manager, avoiding attaching them directly to the Request object. This will be our preferred option going forward for default usage.

Patches

Starting in Requests v2.31.0, Requests will no longer attach this header to redirects with an HTTPS destination. This should have no negative impacts on the default behavior of the library as the proxy credentials are already properly being handled by urllib3's ProxyManager.

For users with custom adapters, this may be potentially breaking if you were already working around this behavior. The previous functionality of rebuild_proxies doesn't make sense in any case, so we would encourage any users impacted to migrate any handling of Proxy-Authorization directly into their custom adapter.

Workarounds

For users who are not able to update Requests immediately, there is one potential workaround.

You may disable redirects by setting allow_redirects to False on all calls through Requests top-level APIs. Note that if you're currently relying on redirect behaviors, you will need to capture the 3xx response codes and ensure a new request is made to the redirect destination.

import requests
r = requests.get('http://github.com/', allow_redirects=False)

Credits

This vulnerability was discovered and disclosed by the following individuals.

Dennis Brinkrolf, Haxolot (https://haxolot.com/) Tobias Funke, (tobiasfunke93@gmail.com)

Release Notes

psf/requests (requests)

### [`v2.31.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2310-2023-05-22) [Compare Source](https://togithub.com/psf/requests/compare/v2.30.0...v2.31.0) **Security** - Versions of Requests between v2.3.0 and v2.30.0 are vulnerable to potential forwarding of `Proxy-Authorization` headers to destination servers when following HTTPS redirects. When proxies are defined with user info (https://user:pass@proxy:8080), Requests will construct a `Proxy-Authorization` header that is attached to the request to authenticate with the proxy. In cases where Requests receives a redirect response, it previously reattached the `Proxy-Authorization` header incorrectly, resulting in the value being sent through the tunneled connection to the destination server. Users who rely on defining their proxy credentials in the URL are *strongly* encouraged to upgrade to Requests 2.31.0+ to prevent unintentional leakage and rotate their proxy credentials once the change has been fully deployed. Users who do not use a proxy or do not supply their proxy credentials through the user information portion of their proxy URL are not subject to this vulnerability. Full details can be read in our [Github Security Advisory](https://togithub.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33q) and [CVE-2023-32681](https://nvd.nist.gov/vuln/detail/CVE-2023-32681). ### [`v2.30.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2300-2023-05-03) [Compare Source](https://togithub.com/psf/requests/compare/v2.29.0...v2.30.0) **Dependencies** - ⚠️ Added support for urllib3 2.0. ⚠️ This may contain minor breaking changes so we advise careful testing and reviewing https://urllib3.readthedocs.io/en/latest/v2-migration-guide.html prior to upgrading. Users who wish to stay on urllib3 1.x can pin to `urllib3<2`. ### [`v2.29.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2290-2023-04-26) [Compare Source](https://togithub.com/psf/requests/compare/v2.28.2...v2.29.0) **Improvements** - Requests now defers chunked requests to the urllib3 implementation to improve standardization. ([#6226](https://togithub.com/psf/requests/issues/6226)) - Requests relaxes header component requirements to support bytes/str subclasses. ([#6356](https://togithub.com/psf/requests/issues/6356)) ### [`v2.28.2`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2282-2023-01-12) [Compare Source](https://togithub.com/psf/requests/compare/v2.28.1...v2.28.2) **Dependencies** - Requests now supports charset_normalizer 3.x. ([#6261](https://togithub.com/psf/requests/issues/6261)) **Bugfixes** - Updated MissingSchema exception to suggest https scheme rather than http. ([#6188](https://togithub.com/psf/requests/issues/6188)) ### [`v2.28.1`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2281-2022-06-29) [Compare Source](https://togithub.com/psf/requests/compare/v2.28.0...v2.28.1) **Improvements** - Speed optimization in `iter_content` with transition to `yield from`. ([#6170](https://togithub.com/psf/requests/issues/6170)) **Dependencies** - Added support for chardet 5.0.0 ([#6179](https://togithub.com/psf/requests/issues/6179)) - Added support for charset-normalizer 2.1.0 ([#6169](https://togithub.com/psf/requests/issues/6169)) ### [`v2.28.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2280-2022-06-09) [Compare Source](https://togithub.com/psf/requests/compare/v2.27.1...v2.28.0) **Deprecations** - ⚠️ Requests has officially dropped support for Python 2.7. ⚠️ ([#6091](https://togithub.com/psf/requests/issues/6091)) - Requests has officially dropped support for Python 3.6 (including pypy3.6). ([#6091](https://togithub.com/psf/requests/issues/6091)) **Improvements** - Wrap JSON parsing issues in Request's JSONDecodeError for payloads without an encoding to make `json()` API consistent. ([#6097](https://togithub.com/psf/requests/issues/6097)) - Parse header components consistently, raising an InvalidHeader error in all invalid cases. ([#6154](https://togithub.com/psf/requests/issues/6154)) - Added provisional 3.11 support with current beta build. ([#6155](https://togithub.com/psf/requests/issues/6155)) - Requests got a makeover and we decided to paint it black. ([#6095](https://togithub.com/psf/requests/issues/6095)) **Bugfixes** - Fixed bug where setting `CURL_CA_BUNDLE` to an empty string would disable cert verification. All Requests 2.x versions before 2.28.0 are affected. ([#6074](https://togithub.com/psf/requests/issues/6074)) - Fixed urllib3 exception leak, wrapping `urllib3.exceptions.SSLError` with `requests.exceptions.SSLError` for `content` and `iter_content`. ([#6057](https://togithub.com/psf/requests/issues/6057)) - Fixed issue where invalid Windows registry entries caused proxy resolution to raise an exception rather than ignoring the entry. ([#6149](https://togithub.com/psf/requests/issues/6149)) - Fixed issue where entire payload could be included in the error message for JSONDecodeError. ([#6036](https://togithub.com/psf/requests/issues/6036)) ### [`v2.27.1`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2271-2022-01-05) [Compare Source](https://togithub.com/psf/requests/compare/v2.27.0...v2.27.1) **Bugfixes** - Fixed parsing issue that resulted in the `auth` component being dropped from proxy URLs. ([#6028](https://togithub.com/psf/requests/issues/6028)) ### [`v2.27.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2270-2022-01-03) [Compare Source](https://togithub.com/psf/requests/compare/v2.26.0...v2.27.0) **Improvements** - Officially added support for Python 3.10. ([#5928](https://togithub.com/psf/requests/issues/5928)) - Added a `requests.exceptions.JSONDecodeError` to unify JSON exceptions between Python 2 and 3. This gets raised in the `response.json()` method, and is backwards compatible as it inherits from previously thrown exceptions. Can be caught from `requests.exceptions.RequestException` as well. ([#5856](https://togithub.com/psf/requests/issues/5856)) - Improved error text for misnamed `InvalidSchema` and `MissingSchema` exceptions. This is a temporary fix until exceptions can be renamed (Schema->Scheme). ([#6017](https://togithub.com/psf/requests/issues/6017)) - Improved proxy parsing for proxy URLs missing a scheme. This will address recent changes to `urlparse` in Python 3.9+. ([#5917](https://togithub.com/psf/requests/issues/5917)) **Bugfixes** - Fixed defect in `extract_zipped_paths` which could result in an infinite loop for some paths. ([#5851](https://togithub.com/psf/requests/issues/5851)) - Fixed handling for `AttributeError` when calculating length of files obtained by `Tarfile.extractfile()`. ([#5239](https://togithub.com/psf/requests/issues/5239)) - Fixed urllib3 exception leak, wrapping `urllib3.exceptions.InvalidHeader` with `requests.exceptions.InvalidHeader`. ([#5914](https://togithub.com/psf/requests/issues/5914)) - Fixed bug where two Host headers were sent for chunked requests. ([#5391](https://togithub.com/psf/requests/issues/5391)) - Fixed regression in Requests 2.26.0 where `Proxy-Authorization` was incorrectly stripped from all requests sent with `Session.send`. ([#5924](https://togithub.com/psf/requests/issues/5924)) - Fixed performance regression in 2.26.0 for hosts with a large number of proxies available in the environment. ([#5924](https://togithub.com/psf/requests/issues/5924)) - Fixed idna exception leak, wrapping `UnicodeError` with `requests.exceptions.InvalidURL` for URLs with a leading dot (.) in the domain. ([#5414](https://togithub.com/psf/requests/issues/5414)) **Deprecations** - Requests support for Python 2.7 and 3.6 will be ending in 2022. While we don't have exact dates, Requests 2.27.x is likely to be the last release series providing support. ### [`v2.26.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2260-2021-07-13) [Compare Source](https://togithub.com/psf/requests/compare/v2.25.1...v2.26.0) **Improvements** - Requests now supports Brotli compression, if either the `brotli` or `brotlicffi` package is installed. ([#5783](https://togithub.com/psf/requests/issues/5783)) - `Session.send` now correctly resolves proxy configurations from both the Session and Request. Behavior now matches `Session.request`. ([#5681](https://togithub.com/psf/requests/issues/5681)) **Bugfixes** - Fixed a race condition in zip extraction when using Requests in parallel from zip archive. ([#5707](https://togithub.com/psf/requests/issues/5707)) **Dependencies** - Instead of `chardet`, use the MIT-licensed `charset_normalizer` for Python3 to remove license ambiguity for projects bundling requests. If `chardet` is already installed on your machine it will be used instead of `charset_normalizer` to keep backwards compatibility. ([#5797](https://togithub.com/psf/requests/issues/5797)) You can also install `chardet` while installing requests by specifying `[use_chardet_on_py3]` extra as follows: ```shell pip install "requests[use_chardet_on_py3]" ``` Python2 still depends upon the `chardet` module. - Requests now supports `idna` 3.x on Python 3. `idna` 2.x will continue to be used on Python 2 installations. ([#5711](https://togithub.com/psf/requests/issues/5711)) **Deprecations** - The `requests[security]` extra has been converted to a no-op install. PyOpenSSL is no longer the recommended secure option for Requests. ([#5867](https://togithub.com/psf/requests/issues/5867)) - Requests has officially dropped support for Python 3.5. ([#5867](https://togithub.com/psf/requests/issues/5867)) ### [`v2.25.1`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2251-2020-12-16) [Compare Source](https://togithub.com/psf/requests/compare/v2.25.0...v2.25.1) **Bugfixes** - Requests now treats `application/json` as `utf8` by default. Resolving inconsistencies between `r.text` and `r.json` output. ([#5673](https://togithub.com/psf/requests/issues/5673)) **Dependencies** - Requests now supports chardet v4.x. ### [`v2.25.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2250-2020-11-11) [Compare Source](https://togithub.com/psf/requests/compare/v2.24.0...v2.25.0) **Improvements** - Added support for NETRC environment variable. ([#5643](https://togithub.com/psf/requests/issues/5643)) **Dependencies** - Requests now supports urllib3 v1.26. **Deprecations** - Requests v2.25.x will be the last release series with support for Python 3.5. - The `requests[security]` extra is officially deprecated and will be removed in Requests v2.26.0. ### [`v2.24.0`](https://togithub.com/psf/requests/blob/HEAD/HISTORY.md#2240-2020-06-17) [Compare Source](https://togithub.com/psf/requests/compare/v2.23.0...v2.24.0) **Improvements** - pyOpenSSL TLS implementation is now only used if Python either doesn't have an `ssl` module or doesn't support SNI. Previously pyOpenSSL was unconditionally used if available. This applies even if pyOpenSSL is installed via the `requests[security]` extra ([#5443](https://togithub.com/psf/requests/issues/5443)) - Redirect resolution should now only occur when `allow_redirects` is True. ([#5492](https://togithub.com/psf/requests/issues/5492)) - No longer perform unnecessary Content-Length calculation for requests that won't use it. ([#5496](https://togithub.com/psf/requests/issues/5496))

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