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chore(deps): update dependency cryptography to v46.0.5 [security]#2008

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chore(deps): update dependency cryptography to v46.0.5 [security]#2008
renovate[bot] wants to merge 1 commit intomainfrom
renovate/pypi-cryptography-vulnerability

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@renovate renovate bot commented Mar 5, 2026

This PR contains the following updates:

Package Change Age Confidence
cryptography (changelog) ==46.0.4==46.0.5 age confidence

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

Release Notes

pyca/cryptography (cryptography)

v46.0.5

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

@renovate renovate bot requested a review from a team as a code owner March 5, 2026 11:18
@renovate renovate bot enabled auto-merge (squash) March 5, 2026 11:18
@renovate renovate bot requested review from arturo-seijas and seb4stien and removed request for a team March 5, 2026 11:18
@seb4stien seb4stien closed this Mar 12, 2026
auto-merge was automatically disabled March 12, 2026 17:25

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