mirror of
https://github.com/langchain-ai/langchain.git
synced 2026-10-05 01:15:09 +03:00
dependabot[bot]
745af72f6a
Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/releases">urllib3's releases</a>.</em></p> <blockquote> <h2>2.8.0</h2> <h2>🚀 urllib3 is fundraising for HTTP/2 support</h2> <p><a href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3 is raising ~$40,000 USD</a> to release HTTP/2 support and ensure long-term sustainable maintenance of the project. If your company or organization uses Python and would benefit from HTTP/2 support in Requests, pip, cloud SDKs, and thousands of other projects <a href="https://opencollective.com/urllib3">please consider contributing financially</a> to ensure HTTP/2 support is developed sustainably and maintained for the long-haul.</p> <p>Thank you for your support.</p> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, GHSA-8988-9cw3-xx77)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, GHSA-vxq7-64xx-v4gw)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, GHSA-gh4c-6fx4-qh6g)</li> </ul> <blockquote> <p>[!IMPORTANT] urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes.</p> <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections.</p> </blockquote> <blockquote> <p>[!NOTE] CVE IDs had not yet been assigned to these advisories at the time of release due to a backlog at GitHub's CNA.</p> </blockquote> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li> </ul> <h2>Bugfixes</h2> <ul> <li> <p>Fixed response header handling to replace obsolete folded header lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112, preventing raw CRLF sequences from appearing in header values such as <code>Set-Cookie</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p> </li> <li> <p>Fixed usage of <code>proxy_ssl_context</code> with <code>ProxyManager</code> when <code>use_forwarding_for_https=True</code>. Passing <code>ssl_context</code> instead of <code>proxy_ssl_context</code> for HTTPS proxies in this configuration now emits a <code>FutureWarning</code> and will raise an error in v3.0. (<a href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p> </li> <li> <p>Changed behavior of the default <code>ConnectionPool.pool</code> initialization. <code>LifoQueue</code> is now resolved from the <code>queue</code> module after the <code>ConnectionPool</code> is instantiated instead of using the default cached <code>QueueCls</code> class property. This is done because sometimes the <code>queue.LifoQueue</code> is monkey-patched late in the program, such as by gevent. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p> </li> <li> <p>Raised <code>UnrewindableBodyError</code> instead of <code>ValueError</code> when retrying a request whose body had <code>tell()</code> but not <code>seek()</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p> </li> <li> <p>Decoded percent-encoded SOCKS proxy credentials before authenticating with the proxy server. (<a href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p> </li> <li> <p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread response data in 64 KiB chunks (same as the default <code>amt</code> when doing <code>HTTPResponse.stream(...)</code>). (<a href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p> </li> <li> <p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms accepted by <code>socket.connect</code>, such as hex (<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal integers (<code>2130706433</code>), ensuring SSL certificate verification uses the correct mode for these addresses. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading <code>FullPoolError</code> instead of <code>ValueError</code> when called with an invalid <code>timeout</code> argument on a pool created with <code>block=True</code>. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p> </li> <li> <p>Fixed port-zero handling to preserve explicit <code>:0</code> values instead of substituting the default ports 80 or 443 in URL parsing, pool selection, proxy configuration, <code>connection_from_url()</code>, and HTTP/2 request authority. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>, <a href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p> </li> <li> <p>Fixed a bug where <code>PoolManager</code> passed the <code>assert_hostname</code> and <code>assert_fingerprint</code> parameters to HTTP connection pools. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p> </li> <li> <p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy forwarding to strip URL fragments from absolute request targets before sending requests. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p> </li> <li> <p>Added safeguards to the proxy tunneling code to prevent potential security issues when handling invalid characters in the proxy host and HTTP headers. This change affects users of Python 3.10, Python 3.11, and Python 3.12 when the standard library does not contain the fix; those on newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the same security fixes. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p> </li> <li> <p>Fixed <code>HTTPSConnection.connect()</code> overriding <code>ProxyConfig.ssl_context</code>'s certificate policy and proxy identity checks with the target connection's TLS settings when forwarding through an HTTPS proxy.</p> <p><code>HTTPSConnection</code> no longer applies target SNI, assertions, or client credentials to forwarding proxy handshakes and continues to use its <code>ssl_context</code> as a fallback when an HTTPS proxy forwards an HTTP target. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p> </li> <li> <p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax, rejecting invalid host input such as raw spaces and control characters, malformed percent-encodings, and percent-encoded control characters in HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel targets. Host normalization now also follows RFC 3986 normalization rules for percent-encoded octets by decoding percent-encoded unreserved characters and uppercasing the hexadecimal digits of retained percent-encoded octets. (<a href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p> </li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's changelog</a>.</em></p> <blockquote> <h1>2.8.0 (2026-09-15)</h1> <h2>Security</h2> <p>Fixed the following security issues:</p> <ul> <li>The TLS configuration for HTTPS proxies could be ignored or overridden. (High severity, <code>GHSA-8988-9cw3-xx77 <https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li> <li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code> could buffer a chunk-size line of unbounded length in memory. (High severity, <code>GHSA-vxq7-64xx-v4gw <https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li> <li>Chunked Deflate streaming could enter an infinite loop. (Medium severity, <code>GHSA-gh4c-6fx4-qh6g <https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li> </ul> <p>.. caution::</p> <pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or overridden by destination settings. Configurations relying on that behavior may require changes. <p>Configure proxy CA certificates and client certificates in <code>proxy_ssl_context</code>, and proxy identity checks with <code>proxy_assert_hostname</code> or <code>proxy_assert_fingerprint</code>. Destination client certificates and identity overrides no longer apply to HTTPS forwarding proxy connections. </code></pre></p> <h2>Deprecations & Removals</h2> <ul> <li>Deprecated using an empty collection as the <code>Retry</code> option <code>allowed_methods</code> to retry any verb. (<code>[#5044](https://github.com/urllib3/urllib3/issues/5044) <https://github.com/urllib3/urllib3/issues/5044></code>__)</li> </ul> <h2>Features</h2> <ul> <li>Added <code>Url.auth_decoded</code> and <code>Url.auth_decoded_joined</code> convenience properties to the result of <code>parse_url()</code>. (<code>[#4945](https://github.com/urllib3/urllib3/issues/4945) <https://github.com/urllib3/urllib3/issues/4945></code>__)</li> <li>Added <code>basic_auth_encoding</code> and <code>proxy_basic_auth_encoding</code> parameters to <code>urllib3.util.make_headers()</code>. (<code>[#5092](https://github.com/urllib3/urllib3/issues/5092) <https://github.com/urllib3/urllib3/issues/5092></code>__)</li> </ul> <h2>Bugfixes</h2> <!-- raw HTML omitted --> </blockquote> <p>... (truncated)</p> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a> Release 2.8.0</li> <li><a href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a> Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for brotlicffi (<a href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a> Fix <code>nox -s docs</code> warning (<a href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a> Merge commit from fork</li> <li><a href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a> Fix loading unencrypted client keys with a password in pyOpenSSL (<a href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a> Test pickling of <code>InvalidChunkLength</code> (<a href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a> Share security policy between GitHub and Read the Docs (<a href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a> Add policy on duplicate pull requests (<a href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li> <li><a href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a> Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li> <li>Additional commits viewable in <a href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare view</a></li> </ul> </details> <br /> [](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) You can disable automated security fix PRs for this repo from the [Security Alerts page](https://github.com/langchain-ai/langchain/network/alerts). </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
🦜️🔗 LangChain
Looking for the JS/TS version? Check out LangChain.js.
To help you ship LangChain apps to production faster, check out LangSmith. LangSmith is a unified developer platform for building, testing, and monitoring LLM applications.
Quick Install
uv add langchain
🤔 What is this?
LangChain is the easiest way to start building agents and applications powered by LLMs. With under 10 lines of code, you can connect to OpenAI, Anthropic, Google, and more. LangChain provides a pre-built agent architecture and model integrations to help you get started quickly and seamlessly incorporate LLMs into your agents and applications.
We recommend you use LangChain if you want to quickly build agents and autonomous applications. Use LangGraph, our low-level agent orchestration framework and runtime, when you have more advanced needs that require a combination of deterministic and agentic workflows, heavy customization, and carefully controlled latency.
LangChain agents are built on top of LangGraph in order to provide durable execution, streaming, human-in-the-loop, persistence, and more. (You do not need to know LangGraph for basic LangChain agent usage.)
📖 Documentation
For full documentation, see the API reference. For conceptual guides, tutorials, and examples on using LangChain, see the LangChain Docs. You can also chat with the docs using Chat LangChain.
📕 Releases & Versioning
See our Releases and Versioning policies.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.
For detailed information on how to contribute, see the Contributing Guide.
Resources
- LangChain Academy — comprehensive, free courses on LangChain libraries and products, made by the LangChain team
- Code of Conduct — community guidelines and standards