chore(deps): bump cryptography from 46.0.5 to 50.0.0 in /envs/qed_math_env

[dependabot]

Bumps cryptography from 46.0.5 to 50.0.0.

Changelog

Sourced from cryptography's changelog.

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
  certificates, CSRs and CRLs.
* :class:`~cryptography.hazmat.primitives.hashes.XOFHash` is now supported
  when building against AWS-LC.
* HMAC (and therefore PBKDF2-HMAC) with SHA-3 hashes is now supported when
  building against AWS-LC.
* Diffie-Hellman (:doc:`/hazmat/primitives/asymmetric/dh`) is now supported
  when building against AWS-LC.
</tr></table> 

... (truncated)

Commits

• 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)
• 6893b94 Import _serialization instead of serialization in x509/extensions (#15363)
• Additional commits viewable in compare view

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Note

Medium Risk
Major-version cryptography upgrade affects transitive crypto/TLS behavior; risk is moderate despite no app code changes, especially if PKCS#7 or strict X.509 parsing is used at runtime.

Overview
Updates envs/qed_math_env/uv.lock only: pins cryptography from 46.0.5 to 50.0.0 (transitive via packages such as authlib and the keyring / secretstorage stack). Wheel and sdist entries for the new release replace the old lock resolution.

The lockfile also drops platform/Python-version markers on secretstorage’s cryptography and jeepney dependencies—an artifact of re-resolving the graph after the bump, not an application change.

50.0.0 includes a security fix (CVE-2026-69247) for PKCS#7 encryptedKey decryption oracles, plus stricter X.509/OCSP parsing and deprecation of finite-field Diffie-Hellman; none of that is exercised by new code in this repo in the diff.

^{Reviewed by Cursor Bugbot for commit ae08d11. Bugbot is set up for automated code reviews on this repo. Configure here.}

[bot-ci-comment]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

[cursor]

Alignment Review Report

Two-tier automated review of this Dependabot change: cryptography 46.0.5 -> 50.0.0 (transitive; dependency-type: indirect) in envs/qed_math_env/uv.lock. The PR touches a single file — the lockfile only — with no Python or Markdown source changes.

Automated Checks

• Lint (.claude/hooks/lint.sh): FAIL — but entirely on pre-existing issues unrelated to this PR. The hook runs ruff format repo-wide (ruff 0.16.1 also reformats Python code blocks inside README.md) and flags unformatted .py files in other envs (agent_world_model_env, chat_env, coding_tools_env, jupyter_env, opencode_env, pi_env, repl_env, terminus_env, textarena_env). This PR changes no .py/.md, so it neither causes nor is affected by these; qed_math_env's own Python files are already formatted.
• Debug code (.claude/hooks/check-debug.sh): CLEAN for this diff. Only pre-existing print/TODO lines elsewhere in src/ were surfaced; none are in this PR.
• Lockfile validity: PASS — uv lock --check in envs/qed_math_env succeeds (142 packages resolved; lockfile consistent with pyproject.toml). cryptography 50.0.0 ships cp39-abi3 wheels, compatible with the env's requires-python >=3.10.

Open RFCs Context

In Review: 000, 001, 002 (+ a pending 002 amendment), 003, 005. Draft: 010. (004 has no status header.) None concern dependency management, security libraries, or qed_math_env, so there is no overlap with this change.

Tier 1: Fixes Required

None. This is a machine-generated lockfile change with no source edits, no debug code, and no credential/injection exposure — it upgrades the cryptography security library. cryptography is transitive here, reached via authlib, pyjwt[crypto], and secretstorage <- keyring <- py-key-value-aio[keyring] (under trackio). The accompanying secretstorage marker change (platform-specific -> unconditional) is standard uv re-resolution output.

Tier 2: Alignment Discussion

Principle Conflicts — None identified. A transitive dependency bump touches no design principle (Gymnasium-style API, rewards-in-environment, client-server separation, MCP boundary, or type safety).

RFC Conflicts — None identified.

Summary

• 0 Tier-1 mechanical issues to fix
• 0 Tier-2 alignment points for human review
• 0 RFC conflicts

Low-risk, security-positive transitive bump; lockfile validated via uv lock --check. The only caveat is repo-wide pre-existing lint debt (unformatted Python in READMEs and other envs) that is out of scope for this PR.

  

_{Sent by Cursor Automation: Pre-review}

[burtenshaw]

Closing in favor of aggregate env Dependabot PR #1015.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.