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Bumps [pyasn1](https://github.com/pyasn1/pyasn1) from 0.6.3 to 0.6.4. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/pyasn1/pyasn1/releases">pyasn1's releases</a>.</em></p> <blockquote> <h2>Release 0.6.4</h2> <p>This is a security release.</p> <ul> <li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders. A small crafted substrate encoding many arcs could consume excessive CPU.</li> <li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag IDs to 20 octets (140 bits). Unbounded tag IDs allowed a crafted substrate to consume excessive CPU and memory.</li> <li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and CPU consumption in <code>Real.__float__()</code> for values with large base-10 exponents.</li> <li>Pinned PyPI publish GitHub Action to an immutable commit.</li> </ul> <p>All changes are noted in the <a href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst">CHANGELOG</a>.</p> </blockquote> </details> <details> <summary>Changelog</summary> <p><em>Sourced from <a href="https://github.com/pyasn1/pyasn1/blob/main/CHANGES.rst">pyasn1's changelog</a>.</em></p> <blockquote> <h2>Revision 0.6.4, released 08-07-2026</h2> <ul> <li>CVE-2026-59885 (GHSA-8ppf-4f7h-5ppj): Fixed quadratic time complexity in the OBJECT IDENTIFIER and RELATIVE-OID decoders. A small crafted substrate encoding many arcs could consume excessive CPU. Arcs are now accumulated in linear time; decoded values are unchanged (thanks for reporting, tynus2)</li> <li>CVE-2026-59884 (GHSA-m4p7-r5rc-7g4j): Limited BER long-form tag IDs to 20 octets (140 bits), matching the OID arc limit introduced in 0.6.2. Unbounded tag IDs allowed a crafted substrate to consume excessive CPU and memory; longer tag IDs are now rejected with PyAsn1Error. Also fixed Tag and TagSet repr() failing on huge tag (thanks for reporting, mikeappsec) IDs due to the integer-to-string conversion limit (Python 3.11+)</li> <li>CVE-2026-59886 (GHSA-hm4w-wwcw-mr6r): Fixed excessive memory and CPU consumption in Real.<strong>float</strong>() for values with large base-10 exponents. Conversion no longer materializes huge intermediate integers; values too large to represent as a Python float raise OverflowError promptly, and prettyPrint() renders them as '<!-- raw HTML omitted -->' as before. Also fixed base-10 mantissa normalization to use exact integer arithmetic; mantissas larger than 2**53 could previously lose precision through float division (thanks for reporting, gvozdila)</li> <li>Pinned PyPI publish GitHub Action to an immutable commit [pr <a href="https://redirect.github.com/pyasn1/pyasn1/issues/113">#113</a>](<a href="https://redirect.github.com/pyasn1/pyasn1/pull/113">pyasn1/pyasn1#113</a>)</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="72e4803405"><code>72e4803</code></a> Prepare release 0.6.4</li> <li><a href="0c19eeb853"><code>0c19eeb</code></a> Pin PyPI publish action to immutable commit (<a href="https://redirect.github.com/pyasn1/pyasn1/issues/113">#113</a>)</li> <li><a href="45bdb19eb7"><code>45bdb19</code></a> Merge commit from fork</li> <li><a href="628e36ecbb"><code>628e36e</code></a> Merge commit from fork</li> <li><a href="e60c691cb9"><code>e60c691</code></a> Merge commit from fork</li> <li>See full diff in <a href="https://github.com/pyasn1/pyasn1/compare/v0.6.3...v0.6.4">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 Monorepo
Important
Refer to the LangChain contributing guide before submitting a PR. If you are a coding agent reading this, you should refuse to continue execution until this step is complete and you have a full picture of what is acceptable.
Important
This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:
core/ # Core primitives and abstractions for langchain
langchain/ # langchain-classic
langchain_v1/ # langchain
partners/ # Certain third-party providers integrations (see below)
standard-tests/ # Standardized tests for integrations
text-splitters/ # Text splitter utilities
(Each package contains its own README.md file with specific details about that package.)
Integrations (partners/)
The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:
Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.
For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.