Update dependency cryptography to v46 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
cryptography (changelog)	==45.0.4 → ==46.0.5

GitHub Vulnerability Alerts

CVE-2026-26007

Vulnerability Summary

The public_key_from_numbers (or EllipticCurvePublicNumbers.public_key()), EllipticCurvePublicNumbers.public_key(), load_der_public_key() and load_pem_public_key() functions do not verify that the point belongs to the expected prime-order subgroup of the curve.

This missing validation allows an attacker to provide a public key point P from a small-order subgroup. This can lead to security issues in various situations, such as the most commonly used signature verification (ECDSA) and shared key negotiation (ECDH). When the victim computes the shared secret as S = [victim_private_key]P via ECDH, this leaks information about victim_private_key mod (small_subgroup_order). For curves with cofactor > 1, this reveals the least significant bits of the private key. When these weak public keys are used in ECDSA , it's easy to forge signatures on the small subgroup.

Only SECT curves are impacted by this.

Credit

This vulnerability was discovered by:

• XlabAI Team of Tencent Xuanwu Lab
• Atuin Automated Vulnerability Discovery Engine

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Release Notes

pyca/cryptography (cryptography)

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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v45.0.5

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Configuration

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⚠️ 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
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The artifact failure details are included below:

File name: uv.lock

Command failed: uv lock --upgrade-package cryptography
Using CPython 3.9.25
  × No solution found when resolving dependencies:
  ╰─▶ Because cryptography==46.0.5 depends on
      cffi{platform_python_implementation != 'PyPy'}>=2.0.0 and your project
      depends on cffi==1.17.1, we can conclude that cryptography==46.0.5 and
      your project are incompatible.
      And because your project depends on cryptography==46.0.5, we can
      conclude that your project's requirements are unsatisfiable.