# CVE-2026-69248: python-cryptography: cryptography is a package designed to expose cryptographic primitives and recipes to Python developers

CVE-2026-69248 is fixed in 3 products on 1 platform, first by python3-cryptography 46.0.5-1ubuntu2.2, released August 3, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-69248
- Priority: High
- CVSS: 7.5 (moderate)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 3, 2026

## Description

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | python-cryptography Debian 14 | 49.0.0-1 | [DEBIAN-CVE-2026-69248](https://patchblox.com/security/data/fix/linux/debian-cve-2026-69248.md) | Aug 22, 2026 |
| Linux | python-cryptography opensuse-leap 16.0 | 44.0.3-160000.5.1 | [OPENSUSE-SU-2026:21685-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21685-1.md) | Aug 30, 2026 |
| Linux | python-cryptography sles 16.0 | 44.0.3-160000.5.1 | [SUSE-SU-2026:23570-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23570-1.md) | Aug 30, 2026 |
| Linux | python3-cryptography Ubuntu 26.04.1 LTS (resolute) | 46.0.5-1ubuntu2.2 | [python3-cryptography 46.0.5-1ubuntu2.2](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-python3-cryptography-46.0.5-1ubuntu2.2.md) | Aug 3, 2026 |
| Linux | python3.14-cryptography RHEL 10 | 45.0.4-4.el10_2.5 | [RHSA-2026:64795](https://patchblox.com/security/data/fix/linux/rhsa-2026-64795.md) | Aug 3, 2026 |
| Linux | python3.14-cryptography RHEL 9 | 0:45.0.4-4.el9_8.6 | [RHSA-2026:64774](https://patchblox.com/security/data/fix/linux/rhsa-2026-64774.md) | Sep 13, 2026 |
| Linux | python3.14-cryptography almalinux 10 | 45.0.4-4.el10_2.5 | [ALSA-2026:64795](https://patchblox.com/security/data/fix/linux/alsa-2026-64795.md) | Sep 8, 2026 |
| Linux | python3.14-cryptography almalinux 9 | 45.0.4-4.el9_8.6 | [ALSA-2026:64774](https://patchblox.com/security/data/fix/linux/alsa-2026-64774.md) | Sep 8, 2026 |
| Linux | python3.14-cryptography ol 10 | 0:45.0.4-4.el10_2.5 | [ELSA-2026-64795-0](https://patchblox.com/security/data/fix/linux/elsa-2026-64795-0.md) | Sep 9, 2026 |
| Linux | python3.14-cryptography ol 9 | 0:45.0.4-4.el9_8.6 | [ELSA-2026-64774-0](https://patchblox.com/security/data/fix/linux/elsa-2026-64774-0.md) | Sep 8, 2026 |
| Linux | python3.14-cryptography rocky 10 | 0:45.0.4-4.el10_2.5 | [RLSA-2026:64795](https://patchblox.com/security/data/fix/linux/rlsa-2026-64795.md) | Sep 9, 2026 |
| Linux | python3.14-cryptography rocky 9 | 0:45.0.4-4.el9_8.6 | [RLSA-2026:64774](https://patchblox.com/security/data/fix/linux/rlsa-2026-64774.md) | Sep 9, 2026 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.