CVE-2026-17084
Fixed in a distro release EPSS <1%CVSS 6.0
The "stringprep" module didn't process characters from RFC 3454 tables B.2 or B.3 correctly: the latest Unicode codepoint attributes were used instead of the specified Unicode 3.2.0. This behavior would cause mismatches when processing domain names using IDNA 2003 (the "idna" codec) and the in_table_b2() function of the "stringprep" module. This only affects domain names containing characters that were not previously registered or had their Unicode attributes such as case-folding behavior updated since Unicode 3.2.0.
Products: Python Software Foundation CPython
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.21 | python3 | 3.12.15-r0 |
| Alpine 3.22 | python3 | 3.12.15-r0 |
| Alpine 3.23 | python3 | 3.12.15-r0 |
| Alpine 3.24 | python3 | 3.14.8-r0 |
| Chainguard | python-3.10 | 3.10.21-r4 |
| Chainguard | python-3.11 | 3.11.16-r5 |
| Chainguard | python-3.12 | 3.12.14-r6 |
| Chainguard | python-3.13 | 3.13.15-r6 |
| Chainguard | python-3.14 | 3.14.7-r6 |
| Debian 12 | pypy3 | no fix |
| Debian 12 | python3.11 | 3.11.2-6+deb12u9 |
| Debian 13 | pypy3 | no fix |
| Debian 13 | python3.13 | no fix |
| Debian 14 | pypy3 | no fix |
| Debian 14 | python3.13 | no fix |
| Debian 14 | python3.14 | 3.14.7-3 |
| Debian 14 | python3.15 | 3.15.0~rc2-1 |
| Red Hat hummingbird 1 | python-unversioned-command | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3 | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-debug | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-devel | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-idle | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-libs | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-test | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3-tkinter | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10 | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10 | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-debug | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-debug | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-devel | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-devel | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-idle | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-idle | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-libs | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-libs | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-test | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.10-test | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-tkinter | 0:3.10.21-1.1.hum1 |
| Red Hat hummingbird 1 | python3.10-tkinter | 0:3.10.22-1.hum1 |
| Red Hat hummingbird 1 | python3.11 | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-debug | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-devel | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-idle | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-libs | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-test | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.11-tkinter | 0:3.11.16-1.2.hum1 |
| Red Hat hummingbird 1 | python3.12 | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-debug | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-devel | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-idle | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-libs | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-test | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.12-tkinter | 0:3.12.14-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13 | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-debug | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-devel | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-freethreading | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-freethreading-debug | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-idle | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-libs | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-test | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.13-tkinter | 0:3.13.15-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14 | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-debug | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-devel | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-idle | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-libs | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-test | 0:3.14.7-1.1.hum1 |
| Red Hat hummingbird 1 | python3.14-freethreading-tkinter | 0:3.14.7-1.1.hum1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python310 | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python310-core | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python310 | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python310-core | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Micro 5.3 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Micro 5.3 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Micro 5.4 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Micro 5.4 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Micro 5.5 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Micro 5.5 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | python | 2.7.18-150000.133.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | python-base | 2.7.18-150000.133.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP4 | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP4 | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP4 | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP4 | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python313 | 3.13.15-150700.4.56.1 |
| SUSE Linux Enterprise Module for Python 3 15 SP7 | python313-core | 3.13.15-150700.4.56.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python3 | 3.4.10-25.199.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python3-base | 3.4.10-25.199.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python36 | 3.6.15-125.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | python36-core | 3.6.15-125.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python310 | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python310-core | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python312 | 3.12.14-150600.3.68.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | python312-core | 3.12.14-150600.3.68.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python | 2.7.18-33.88.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python-base | 2.7.18-33.88.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python-doc | 2.7.18-33.88.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python3 | 3.4.10-25.199.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python3-base | 3.4.10-25.199.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python36 | 3.6.15-125.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | python36-core | 3.6.15-125.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python310 | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python310-core | 3.10.22-150400.4.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311 | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311 | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311-core | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311-core | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311-documentation | 3.11.17-150400.9.105.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | python311-documentation | 3.11.16-150400.9.102.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python3 | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python3-core | 3.6.15-150300.10.129.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python312 | 3.12.14-150600.3.68.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | python312-core | 3.12.14-150600.3.68.1 |
| SUSE Linux Micro 6.0 | python311 | 3.11.16-1.1 |
| SUSE Linux Micro 6.0 | python311-core | 3.11.16-1.1 |
| SUSE Linux Micro 6.1 | python311 | 3.11.16-slfo.1.1_1.1 |
| SUSE Linux Micro 6.1 | python311-core | 3.11.16-slfo.1.1_1.1 |
| Ubuntu 22.04 LTS | python3.10 | no fix |
| Ubuntu 24.04 LTS | python3.12 | no fix |
| Ubuntu 26.04 LTS | python3.14 | no fix |
| Ubuntu 26.10 | python3.14 | no fix |
| Ubuntu Pro 14.04 LTS | python2.7 | no fix |
| Ubuntu Pro 14.04 LTS | python3.4 | no fix |
| Ubuntu Pro 14.04 LTS | python3.5 | no fix |
| Ubuntu Pro 16.04 LTS | python2.7 | no fix |
| Ubuntu Pro 16.04 LTS | python3.5 | no fix |
| Ubuntu Pro 18.04 LTS | python2.7 | no fix |
| Ubuntu Pro 18.04 LTS | python3.6 | no fix |
| Ubuntu Pro 18.04 LTS | python3.7 | no fix |
| Ubuntu Pro 18.04 LTS | python3.8 | no fix |
| Ubuntu Pro 20.04 LTS | python2.7 | no fix |
| Ubuntu Pro 20.04 LTS | python3.8 | no fix |
| Ubuntu Pro 20.04 LTS | python3.9 | no fix |
| Ubuntu Pro 22.04 LTS | python2.7 | no fix |
| Ubuntu Pro 22.04 LTS | python3.11 | no fix |
| Wolfi | python-3.10 | 3.10.21-r4 |
| Wolfi | python-3.11 | 3.11.16-r5 |
| Wolfi | python-3.12 | 3.12.14-r6 |
| Wolfi | python-3.13 | 3.13.15-r6 |
| Wolfi | python-3.14 | 3.14.7-r6 |
| openSUSE Tumbleweed | python310 | 3.10.21-2.1 |
| openSUSE Tumbleweed | python311 | 3.11.16-2.1 |
| openSUSE Tumbleweed | python312 | 3.12.14-2.1 |
| openSUSE Tumbleweed | python313 | 3.13.15-1.1 |
| openSUSE Tumbleweed | python314 | 3.14.7-2.1 |
| openSUSE Tumbleweed | python315 | 3.15.0~rc2-1.1 |