# CVE-2026-6357: pip self-update functionality can import newly installed modules after wheel installation CVE-2026-6357 is fixed in 15 products on 1 platform, first by DEBIAN-CVE-2026-6357, released April 27, 2026. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2026-6357 - Priority: Routine - CVSS: n/a (Moderate) - EPSS: 0.0014 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Apr 27, 2026 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6357 ## Description pip prior to version 26.1 would run self-update check functionality after installing wheel files which required importing well-known Python modules names. These module imports were intentionally deferred to increase startup time of the pip CLI. The patch changes self-update functionality to run before wheels are installed to prevent newly-installed modules from being imported shortly after the installation of a wheel package. Users should still review package contents prior to installation. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | python sles 15.7 | 2.7.18-150000.123.1 | [SUSE-SU-2026:3635-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3635-1.md) | Aug 18, 2026 | | Linux | python-base sles 15.7 | 2.7.18-150000.123.1 | [SUSE-SU-2026:3635-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3635-1.md) | Aug 18, 2026 | | Linux | python-pip Debian 14 | 26.1.1+dfsg-1 | [DEBIAN-CVE-2026-6357](https://patchblox.com/security/data/fix/linux/debian-cve-2026-6357.md) | Apr 27, 2026 | | Linux | python-pip sles 15.6 | 22.3.1-150400.17.26.1 | [SUSE-SU-2026:2634-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2634-1.md) | Jun 25, 2026 | | Linux | python-pip sles 15.7 | 22.3.1-150400.17.26.1 | [SUSE-SU-2026:2634-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2634-1.md) | Jun 25, 2026 | | Linux | python-pip sles 16.0 | 25.0.1-160000.4.1 | [SUSE-SU-2026:22018-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22018-1.md) | Jun 2, 2026 | | Linux | python3 sles 15.6 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 | | Linux | python3 sles 15.7 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 | | Linux | python3-core sles 15.6 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 | | Linux | python3-core sles 15.7 | 3.6.15-150300.10.129.1 | [SUSE-SU-2026:4754-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4754-1.md) | Nov 7, 2026 | | Linux | python3-pip amzn 2023 | 21.3.1-2.amzn2023.0.19 | [ALAS2023-2026-1689](https://patchblox.com/security/data/fix/linux/alas2023-2026-1689.md) | May 11, 2026 | | Linux | python3-pip-wheel amzn 2023 | 21.3.1-2.amzn2023.0.19 | [ALAS2023-2026-1689](https://patchblox.com/security/data/fix/linux/alas2023-2026-1689.md) | May 11, 2026 | | Linux | python3.11-pip amzn 2023 | 22.3.1-2.amzn2023.0.12 | [ALAS2023-2026-1665](https://patchblox.com/security/data/fix/linux/alas2023-2026-1665.md) | May 11, 2026 | | Linux | python3.11-pip-wheel amzn 2023 | 22.3.1-2.amzn2023.0.12 | [ALAS2023-2026-1665](https://patchblox.com/security/data/fix/linux/alas2023-2026-1665.md) | May 11, 2026 | | Linux | python3.12-pip amzn 2023 | 23.2.1-4.amzn2023.0.9 | [ALAS2023-2026-1666](https://patchblox.com/security/data/fix/linux/alas2023-2026-1666.md) | May 11, 2026 | | Linux | python3.12-pip-wheel amzn 2023 | 23.2.1-4.amzn2023.0.9 | [ALAS2023-2026-1666](https://patchblox.com/security/data/fix/linux/alas2023-2026-1666.md) | May 11, 2026 | | Linux | python3.13-pip amzn 2023 | 24.2-259.amzn2023.0.5 | [ALAS2023-2026-1654](https://patchblox.com/security/data/fix/linux/alas2023-2026-1654.md) | May 11, 2026 | | Linux | python3.13-pip-wheel amzn 2023 | 24.2-259.amzn2023.0.5 | [ALAS2023-2026-1654](https://patchblox.com/security/data/fix/linux/alas2023-2026-1654.md) | May 11, 2026 | | Linux | python3.14-pip amzn 2023 | 25.1.1-1.amzn2023.0.2 | [ALAS2023-2026-1653](https://patchblox.com/security/data/fix/linux/alas2023-2026-1653.md) | May 11, 2026 | | Linux | python3.14-pip-wheel amzn 2023 | 25.1.1-1.amzn2023.0.2 | [ALAS2023-2026-1653](https://patchblox.com/security/data/fix/linux/alas2023-2026-1653.md) | May 11, 2026 | --- Data as of 2026-11-08T19:12:23Z UTC. 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