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Vulnerability Database · PyPI · cryptography · Version

cryptography 2.1.3

2.1.3 is affected by 25 vulnerabilities.

The vulnerabilities that cover this exact version are listed below with the fixed version to move to. The upgrade Vulert recommends: 50.0.2.

Critical 0 High 11 Medium 8 Low 3 Unrated 3

All cryptography versions & vulnerabilities → Search the database for this package →
Released 02 Nov 2017 Licence Apache-2.0 OR BSD-3-Clause Also known from other sources 0 Newer releases 160 Database updated 23/Oct/2026

Release and licence data published by PyPI. Licence information is not legal advice.

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01 Vulnerabilities affecting this version

cryptography 2.1.3 vulnerabilities

25 vulnerabilities cover cryptography 2.1.3. Scroll the table for all of them, or open the full list in the database.

Vulnerability Severity Fixed version Disclosed
CVE-2026-69249: python-cryptography Exponential Path-Building Vulnerability Due to Duplicate Self-Signed Intermediates 8.7 high 49.0.0 04 Aug 2026
CVE-2026-69249: python-cryptography Exponential Path-Building Vulnerability Due to Duplicate Self-Signed Intermediates 8.7 high 49.0.0 03 Aug 2026
CVE-2023-50782: Python Cryptography Package Vulnerable to Bleichenbacher Timing Oracle Attack 7.5 high 42.0.0 07 Jul 2026
Critical Vulnerability in cryptography Package Due to Statically Linked OpenSSL 7.5 high 48.0.1 15 Jun 2026
CVE-2024-26130: Cryptography Package Vulnerability Leading to NULL Pointer Dereference 7.5 high 97d231672763cdb5959a3b191e692a362f1b9e55 21 Feb 2024
Vulnerability in Python Cryptography Package: Bleichenbacher Timing Oracle Attack 7.5 high 42.0.0 05 Feb 2024
CVE-2018-10903: python-cryptography - Cryptography Flaw Allows GCM Tag Forgeries 7.5 high 2.3 31 Jul 2018
CVE-2023-0286: Vulnerable OpenSSL in cryptography Package 7.4 high 39.0.1 07 Jul 2026
CVE-2023-0286: OpenSSL Vulnerability in cryptography 7.4 high 39.0.1 08 Feb 2023
CVE-2026-69248: python-cryptography Wildcard DNS Name Vulnerability Allows Escape from Permitted Subtrees 6.9 medium 49.0.0 04 Aug 2026
CVE-2026-69248: python-cryptography Wildcard DNS Name Verification Bypass 6.9 medium 49.0.0 03 Aug 2026
CVE-2026-26007: cryptography Package Vulnerability in Public Key Validation 6.5 medium 46.0.5 10 Feb 2026
CVE-2023-23931: Vulnerability in cryptography package - Cipher.update_into can corrupt memory 6.5 medium 39.0.1 07 Feb 2023
CVE-2020-25659: RSA decryption vulnerable to Bleichenbacher timing vulnerability in cryptography 5.9 high 3.2 27 Oct 2020
CVE-2024-0727: Cryptography Package Suffers Null Pointer Dereference in PKCS12 Parsing 5.5 medium 42.0.2 07 Jul 2026
CVE-2024-0727: Null pointer dereference in PKCS12 parsing in cryptography 5.5 medium 42.0.2 26 Jan 2024
CVE-2026-34073: Cryptography Package DNS Name Constraint Validation Flaw 5.3 medium 46.0.6 31 Mar 2026
CVE-2026-34073: cryptography Package Suffers from Incomplete DNS Name Constraint Enforcement 1.7 low 46.0.6 27 Mar 2026
CVE-2026-26007: cryptography Package Vulnerable to Subgroup Attack Due to Missing Subgroup Validation N/A high 46.0.5 10 Feb 2026
Vulnerability in pyca/cryptography's wheels include vulnerable OpenSSL N/A low 41.0.3 01 Aug 2023
Vulnerable OpenSSL in cryptography wheels N/A low 41.0.0 02 Jun 2023
Vulnerable OpenSSL included in cryptography wheels N/A medium 39.0.1 08 Feb 2023
CVE-2023-23931: cryptography Package Buffer Protocol Vulnerability N/A unrated 94a50a9731f35405f0357fa5f3b177d46a726ab3 07 Feb 2023
CVE-2020-25659: Vulnerability in python-cryptography 3.2 N/A unrated 3.2.1 11 Jan 2021
CVE-2018-10903: python-cryptography - Insecure Tag Length Validation N/A unrated 2.3 30 Jul 2018

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Questions

About cryptography 2.1.3

Is cryptography 2.1.3 vulnerable?

Yes. 25 vulnerabilities in the Vulert database cover cryptography 2.1.3: 0 critical, 11 high, 8 medium and 3 low, plus 3 not yet rated. The upgrade Vulert recommends is 50.0.2, and each entry above names the fixed version to move to.

Which version of cryptography should I use instead of 2.1.3?

50.0.2 is the version Vulert recommends for this release line. The version table on the package page lists every release with the vulnerabilities recorded against it.

Is 2.1.3 the latest release of cryptography?

No. 2.1.3 was published 02 Nov 2017, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.

How do I monitor cryptography for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the cryptography version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.