StackPrism

PyPI package

cryptography 45.0.2 vulnerabilities, and the version that fixes all of them

cryptography 45.0.2 has 7 known vulnerabilities (4 rated high or critical); 50.0.0 fixes all of them.

PyPI (opens in a new tab) describes it as “cryptography is a package which provides cryptographic recipes and primitives to Python developers.”

Known vulnerabilities
7
4 rated high or critical
Released
May 18, 2025
Latest is 50.0.2
Licence
Apache-2.0 OR BSD-3-Clause
OpenSSF Scorecard
8.3/10
pyca/cryptography (opens in a new tab)
Pulls in
2 packages
Resolved by deps.dev

What to upgrade to

50.0.0 is the closest release with no known vulnerabilities.

  • 45.0.7

    Newest 45.x release. Released Sep 1, 2025.

    7 known vulnerabilities, worst rated warning

  • 50.0.0Upgrade to this

    Fixes all 7 known vulnerabilities. Released Jul 31, 2026.

    No known vulnerabilities

  • 50.0.2

    Latest release. Released Sep 30, 2026.

    No known vulnerabilities

50.0.0 came out on Jul 31, 2026. A coding agent trained before then doesn’t know it exists, so it may suggest an older release. AI knowledge cutoff dates

Hand the fix to your coding agent

One task with the upgrade, the file to change and why. Paste it into Claude Code, Cursor or Codex.

Findings

Every advisory for cryptography 45.0.2

Known exploited first (CISA KEV), then by how likely they are to be exploited (FIRST EPSS), then by severity. Each id links to its OSV.dev record.

  1. WarningCVE-2026-39892 on OSV.dev (opens in a new tab)GHSA-p423-j2cm-9vmqEPSS: top 46%

    Cryptography vulnerable to buffer overflow if non-contiguous buffers were passed to APIs

    Fixed in 46.0.7. Published Apr 8, 2026.

  2. CriticalCVE-2026-26007 on OSV.dev (opens in a new tab)GHSA-r6ph-v2qm-q3c2EPSS: top 69%

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

    Fixed in 46.0.5. Published Feb 10, 2026.

  3. WarningCVE-2026-69248 on OSV.dev (opens in a new tab)GHSA-m2h6-j472-rp4cEPSS: top 78%

    python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees

    Fixed in 49.0.0. Published Aug 3, 2026.

  4. CriticalCVE-2026-69247 on OSV.dev (opens in a new tab)GHSA-g6cj-pr64-35w5EPSS: top 82%

    cryptography: PKCS#7 EnvelopedData decryption exposes a Bleichenbacher oracle through distinguishable errors and timing

    Fixed in 50.0.0. Published Aug 3, 2026.

  5. CriticalCVE-2026-69249 on OSV.dev (opens in a new tab)GHSA-jwv3-5hgf-82wwEPSS: top 85%

    python-cryptography: Duplicate self-signed intermediates can cause exponential path-building

    Fixed in 49.0.0. Published Aug 3, 2026.

  6. LowCVE-2026-34073 on OSV.dev (opens in a new tab)GHSA-m959-cc7f-wv43EPSS: top 93%

    cryptography has incomplete DNS name constraint enforcement on peer names

    Fixed in 46.0.6. Published Mar 27, 2026.

  7. CriticalGHSA-537c-gmf6-5ccf on OSV.dev (opens in a new tab)

    Vulnerable OpenSSL included in cryptography wheels

    Fixed in 48.0.1. Published Jun 15, 2026.

Is cryptography the only one?

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How this page is checked

StackPrism asks OSV.dev which advisories affect exactly cryptography 45.0.2, merges duplicates filed under several ids, and ranks them with CISA’s Known Exploited Vulnerabilities list and FIRST EPSS. Release dates and deprecation come from deps.dev and PyPI. No AI writes this page: every sentence comes from that data, refreshed every few hours.

Last checked against PyPI, OSV.dev, deps.dev, CISA KEV and FIRST EPSS.