[dependabot]

Bumps the cryptography group with 3 updates: pyopenssl, cffi and cryptography.

Updates pyopenssl from 26.3.0 to 26.4.0

Changelog

Sourced from pyopenssl's changelog.

26.4.0 (2026-08-01)

Backward-incompatible changes: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Deprecations: ^^^^^^^^^^^^^

Changes: ^^^^^^^^

• Maximum supported cryptography version is now 50.x.

Commits

• 07b1ef7 Prepare 26.4.0 release (#1527)
• 1ff4a02 Bump actions/setup-python from 6.3.0 to 7.0.0 (#1524)
• 01e5eeb Bump pypa/gh-action-pypi-publish from 1.14.0 to 1.14.1 (#1523)
• 4dccfb9 Bump actions/checkout from 7.0.0 to 7.0.1 (#1521)
• 94ff658 Fix mypy error in _runopenssl with new typeshed (#1522)
• 6f75fa5 Bump actions/cache from 5.0.5 to 6.1.0 (#1519)
• 52e5f45 Bump actions/setup-python from 6.2.0 to 6.3.0 (#1518)
• c6b4a5f Bump actions/checkout from 6.0.3 to 7.0.0 (#1517)
• See full diff in compare view

Updates cffi from 2.1.0 to 2.1.1

Release notes

Sourced from cffi's releases.

v2.1.1

What's Changed

• Minimize internal Python API usage for interpreter and thread state sampling where possible. Avoids breaking ABI change in Python >= 3.15.0b4 (python-cffi/cffi#269).

Full Changelog: python-cffi/cffi@v2.1.0...v2.1.1

Commits

• fd33e77 New release 2.1.1
• 56a7876 Use PyGILState_Ensure to avoid accessing CPython internals (#269) (#270)
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Updates cryptography from 49.0.0 to 50.0.1

Changelog

Sourced from cryptography's changelog.

50.0.1 - 2026-08-25

* Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 4.0.2.
.. _v50-0-0:
50.0.0 - 2026-07-31

• SECURITY ISSUE: :func:~cryptography.hazmat.primitives.serialization.pkcs7.pkcs7_decrypt_der and its PEM and S/MIME variants no longer expose distinguishable errors or timing when unwrapping a RecipientInfo's encryptedKey, which could act as a Bleichenbacher oracle for callers that decrypt untrusted messages. A random key is now substituted on failure, as described in :rfc:3218. Credit to @​X1AOxiang for reporting the issue. CVE-2026-69247
• Deprecated Diffie-Hellman key exchange over finite fields (FFDH). Everything FFDH is deprecated, including the types in cryptography.hazmat.primitives.asymmetric.dh and loading FFDH keys or parameters with the key loading APIs. Users should migrate to a more modern key exchange algorithm.
• Added xof() class methods to :class:~cryptography.hazmat.primitives.hashes.SHAKE128 and :class:~cryptography.hazmat.primitives.hashes.SHAKE256 for constructing algorithm instances configured for use with :class:~cryptography.hazmat.primitives.hashes.XOFHash.
• The :mod:X.509 verification <cryptography.x509.verification> APIs are now considered stable and are subject to our API stability policy.
• Added the :doc:/cobblestone recipe, an implementation of the Cobblestone-128 and Cobblestone-256 instantiations of the C2SP chunked-encryption specification <https://c2sp.org/chunked-encryption>_ for streaming authenticated encryption of large messages.
• Parsing a Signed Certificate Timestamp list now rejects encodings that carry trailing bytes after the list or after an individual SCT, instead of silently ignoring them.
• Added support for using :class:~cryptography.x509.Name as a field type in the :doc:/hazmat/asn1/index module.
• Loading a public key or an EC private key now rejects DER where the subjectPublicKey (or EC publicKey) BIT STRING declares a non-zero number of unused bits, instead of silently ignoring it.
• Parsing a CRL entry's InvalidityDate extension now rejects a GeneralizedTime that carries fractional seconds or another non-DER form, matching the strict encoding already required for every other X.509 time field.
• :func:~cryptography.x509.ocsp.load_der_ocsp_request and :func:~cryptography.x509.ocsp.load_der_ocsp_response now reject a request or response whose version field is not v1, the only version defined by RFC 6960, matching the version validation already performed when loading

... (truncated)

Commits

• ffde75a bump for 50.0.1 + changelog (#15520)
• dcb7050 Prepare for 50.0.0 release (#15372)
• 53fccd9 Don't leak how PKCS#7 encryptedKey decryption failed (#15369)
• d472f97 Add from __future__ import annotations to all src/ Python files (#15371)
• 908773d Bump downstream dependencies in CI (#15368)
• 2cc07cc Bump BoringSSL, OpenSSL, AWS-LC in CI (#15367)
• c94ede9 chore(deps): bump ruff from 0.16.0 to 0.16.1 (#15366)
• 67a8308 chore(deps): bump virtualenv from 21.7.0 to 21.7.1 (#15365)
• 95018ff Release the GIL in one-shot AEAD encrypt/decrypt (#15361)
• 6954733 Release the GIL during DH and DSA parameter generation (#15364)
• Additional commits viewable in compare view

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[roger-zhangg]

Routine dependency bump, full CI green (55 checks). Verified the diff is limited to version pins in pyproject.toml / reproducible requirements.