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fix(deps): update dependency cryptography to v46 [security]#54

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fix(deps): update dependency cryptography to v46 [security]#54
renovate[bot] wants to merge 1 commit intomasterfrom
renovate/pypi-cryptography-vulnerability

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@renovate renovate bot commented Feb 11, 2026

This PR contains the following updates:

Package Change Age Confidence
cryptography (changelog) ==45.0.5==46.0.6 age confidence

GitHub Vulnerability Alerts

CVE-2026-34073

Summary

In versions of cryptography prior to 46.0.5, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a wildcard leaf certificate for *.example.com, even if the leaf's parent certificate (or upwards) contained an excluded subtree constraint for bar.example.com.

This behavior resulted from a gap between RFC 5280 (which defines Name Constraint semantics) and RFC 9525 (which defines service identity semantics): put together, neither states definitively whether Name Constraints should be applied to peer names. To close this gap, cryptography now conservatively rejects any validation where the peer name would be rejected by a name constraint if it were a SAN instead.

In practice, exploitation of this bypass requires an uncommon X.509 topology, one that the Web PKI avoids because it exhibits these kinds of problems. Consequently, we consider this a medium-to-low impact severity.

See CVE-2025-61727 for a similar bypass in Go's crypto/x509.

Remediation

Users should upgrade to 46.0.6 or newer.

Attribution

Reporter: @​1seal


Release Notes

pyca/cryptography (cryptography)

v46.0.6

Compare Source

v46.0.5

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v46.0.4

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v46.0.3

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v46.0.2

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v46.0.1

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v46.0.0

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v45.0.7

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v45.0.6

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Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about these updates again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

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renovate bot commented Feb 11, 2026

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: uv.lock
Command failed: uv lock --upgrade-package cryptography
Downloading cpython-3.13.12-linux-x86_64-gnu (download) (33.6MiB)
 Downloaded cpython-3.13.12-linux-x86_64-gnu (download)
Using CPython 3.13.12
  × No solution found when resolving dependencies for split (markers:
  │ python_full_version >= '3.12'):
  ╰─▶ Because cryptography==46.0.6 depends on
      cffi{platform_python_implementation != 'PyPy'}>=2.0.0 and your project
      depends on cffi==1.17.1, we can conclude that cryptography==46.0.6 and
      your project are incompatible.
      And because your project depends on cryptography==46.0.6 and your
      project requires ibm-oso-framework[dev], we can conclude that your
      project's requirements are unsatisfiable.

@renovate renovate bot force-pushed the renovate/pypi-cryptography-vulnerability branch from 309f42a to ac07b79 Compare March 19, 2026 05:53
@renovate renovate bot force-pushed the renovate/pypi-cryptography-vulnerability branch from ac07b79 to e403221 Compare March 26, 2026 18:42
@renovate renovate bot changed the title fix(deps): update dependency cryptography to v46 [security] fix(deps): update dependency cryptography to v46 [security] - autoclosed Mar 27, 2026
@renovate renovate bot closed this Mar 27, 2026
@renovate renovate bot deleted the renovate/pypi-cryptography-vulnerability branch March 27, 2026 01:45
@renovate renovate bot changed the title fix(deps): update dependency cryptography to v46 [security] - autoclosed fix(deps): update dependency cryptography to v46 [security] Mar 29, 2026
@renovate renovate bot reopened this Mar 29, 2026
@renovate renovate bot force-pushed the renovate/pypi-cryptography-vulnerability branch 2 times, most recently from e403221 to 0b98fc6 Compare March 29, 2026 00:50
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