chore(deps): update dependency cryptography to v46.0.6 [security]

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
cryptography (changelog)	46.0.5 → 46.0.6

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

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Release Notes

pyca/cryptography (cryptography)

v46.0.6

Compare Source

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.27%. Comparing base (69ad22e) to head (49b3308).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1818      +/-   ##
==========================================
+ Coverage   92.25%   92.27%   +0.01%     
==========================================
  Files         157      157              
  Lines       10882    10882              
==========================================
+ Hits        10039    10041       +2     
+ Misses        843      841       -2     

Flag	Coverage Δ
unit	92.27% <ø> (+0.01%)	⬆️

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