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

[renovate]

This PR contains the following updates:

Package	Update	Change	OpenSSF
cryptography (changelog)	major	==44.0.1 → ==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

---

cryptography Vulnerable to a Subgroup Attack Due to Missing Subgroup Validation for SECT Curves

CVE-2026-26007 / GHSA-r6ph-v2qm-q3c2

More information

Details

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

Severity

• CVSS Score: 8.2 / 10 (High)
• Vector String: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

• https://github.com/pyca/cryptography/security/advisories/GHSA-r6ph-v2qm-q3c2
• https://nvd.nist.gov/vuln/detail/CVE-2026-26007
• https://github.com/pyca/cryptography/commit/0eebb9dbb6343d9bc1d91e5a2482ed4e054a6d8c
• https://github.com/pyca/cryptography
• https://github.com/pyca/cryptography/releases/tag/46.0.5
• http://www.openwall.com/lists/oss-security/2026/02/10/4

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

---

Release Notes

pyca/cryptography (cryptography)

v46.0.5

Compare Source

v46.0.4

Compare Source

v46.0.3

Compare Source

v46.0.2

Compare Source

v46.0.1

Compare Source

v46.0.0

Compare Source

v45.0.7

Compare Source

v45.0.6

Compare Source

v45.0.5

Compare Source

v45.0.4

Compare Source

v45.0.3

Compare Source

v45.0.2

Compare Source

v45.0.1

Compare Source

v45.0.0

Compare Source

v44.0.3

Compare Source

v44.0.2

Compare Source

---

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 this update again.

---

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

---

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