Description
The poplib module, when passed a user-controlled command, can have
additional commands injected using newlines. Mitigation rejects commands
containing control characters.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Python Software Foundation | CPython | < 3.15.0a6 | 3.15.0a6 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pypy3 +2 | No fix yet | — |
| Debian 13 | pypy3 +2 | No fix yet | — |
| Debian 12 | pypy3 +2 | No fix yet | — |
| Debian 11 | python3.9 | 3.9.2-1+deb11u5 | DLA-4455-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | python3.13 +1 | No fix yet | — |
| Ubuntu 24.04 LTS | python3.12 | No fix yet | — |
| Ubuntu 22.04 LTS | python2.7 +2 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | python2.7 +2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | python2.7 +3 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | python2.7 +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | python2.7 +2 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | python3 +8 | 3.12.12-3.el10_1.1 | RHSA-2026:4713 |
| RHEL 9 | python3 +8 | 3.9.25-3.el9_7.1 | RHSA-2026:4168 |
| RHEL 9 | python3.11 +6 | 3.11.13-5.1.el9_7 | RHSA-2026:4216 |
| RHEL 9 | python3.12 +6 | 3.12.12-4.el9_7.1 | RHSA-2026:4165 |
| RHEL 8 | python3 +7 | 3.6.8-73.el8_10 | RHSA-2026:2128 |
| RHEL 8 | python3.11 +7 | 3.11.13-5.el8_10 | RHSA-2026:4473 |
| RHEL 8 | python3.12 +7 | 3.12.12-3.el8_10 | RHSA-2026:4463 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | python3 +8 | 3.12.9-2.el10_0.7 | RHSA-2026:5315 |
| RHEL 9.6 EUS | python3 +8 | 3.9.21-2.el9_6.4 | RHSA-2026:5218 |
| RHEL 9.6 EUS | python3.12 +6 | 3.12.9-1.el9_6.6 | RHSA-2026:4746 |
| RHEL 9.4 EUS | python3 +8 | 3.9.18-3.el9_4.11 | RHSA-2026:5226 |
| RHEL 9.4 EUS | python3.11 +6 | 3.11.7-1.el9_4.11 | RHSA-2026:6253 |
| RHEL 9.4 EUS | python3.12 +6 | 3.12.1-4.el9_4.11 | RHSA-2026:5399 |
| RHEL 9.2 E4S | python3 +5 | 3.9.16-1.el9_2.12 | RHSA-2026:5225 |
| RHEL 9.2 E4S | python3.11 +3 | 3.11.2-2.el9_2.10 | RHSA-2026:5223 |
| RHEL 9.0 E4S | python3 +5 | 3.9.10-4.el9_0.9 | RHSA-2026:5219 |
| RHEL 8.8 TUS | python3 +7 | 3.6.8-51.el8_8.13 | RHSA-2026:6008 |
| RHEL 8.8 TUS | python3.11 +4 | 3.11.2-2.el8_8.8 | RHSA-2026:5152 |
| RHEL 8.8 E4S | python3 +7 | 3.6.8-51.el8_8.13 | RHSA-2026:6008 |
| RHEL 8.8 E4S | python3.11 +4 | 3.11.2-2.el8_8.8 | RHSA-2026:5152 |
| RHEL 8.6 TUS | python3 +7 | 3.6.8-47.el8_6.11 | RHSA-2026:5215 |
| RHEL 8.6 E4S | python3 +7 | 3.6.8-47.el8_6.11 | RHSA-2026:5215 |
| RHEL 8.6 AUS | python3 +7 | 3.6.8-47.el8_6.11 | RHSA-2026:5215 |
| RHEL 8.4 EUS Long Life | python3 +7 | 3.6.8-39.el8_4.9 | RHSA-2026:5221 |
| RHEL 8.4 AUS | python3 +7 | 3.6.8-39.el8_4.9 | RHSA-2026:5221 |
| RHEL 8.2 AUS | python3 +7 | 3.6.8-24.el8_2.6 | RHSA-2026:5216 |
| RHEL 7 ELS | python +6 | 2.7.5-94.el7_9.3 | RHSA-2026:5393 |
| RHEL 7 ELS | python3 +6 | 3.6.8-21.el7_9.4 | RHSA-2026:6464 |
| RHEL 6 ELS | python +5 | 2.6.6-70.el6_10.2 | RHSA-2026:6007 |
| Red Hat Hardened Images 1 | python3 +15 | 3.14.3-2.hum1 | RHSA-2026:5994 |
| Red Hat Hardened Images 1 | python3.11 +6 | 3.11.15-4.hum1 | RHSA-2026:8822 |
| Red Hat Hardened Images 1 | python3.12 +6 | 3.12.13-3.hum1 | RHSA-2026:8824 |
| Red Hat Hardened Images 1 | python3.13 +8 | 3.13.13-1.hum1 | RHSA-2026:7443 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | python-unversioned-command | 3.12.12-3.el10_1.1 | ALSA-2026:4713 |
| AlmaLinux 9 | python3 +7 | 3.9.25-3.el9_7.1 | ALSA-2026:4168 |
| AlmaLinux 9 | python3.11 +6 | 3.11.13-5.1.el9_7 | ALSA-2026:4216 |
| AlmaLinux 9 | python3.12 +6 | 3.12.12-4.el9_7.1 | ALSA-2026:4165 |
| AlmaLinux 8 | python3-idle +6 | 3.6.8-73.el8_10.alma.1 | ALSA-2026:2128 |
| AlmaLinux 8 | python3.11 +7 | 3.11.13-5.el8_10 | ALSA-2026:4473 |
| AlmaLinux 8 | python3.12 +7 | 3.12.12-3.el8_10 | ALSA-2026:4463 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | python3.12 | 3.12.12-3.el10_1.1 | RLSA-2026:4713 |
| Rocky Linux 9 | python3.11 | 3.11.13-5.1.el9_7 | RLSA-2026:4216 |
| Rocky Linux 9 | python3.12 | 3.12.12-4.el9_7.1 | RLSA-2026:4165 |
| Rocky Linux 9 | python3.9 | 3.9.25-3.el9_7.1 | RLSA-2026:4168 |
| Rocky Linux 8 | python3 | 3.6.8-73.el8_10.rocky.0 | RLSA-2026:2128 |
| Rocky Linux 8 | python3.11 | 3.11.13-5.el8_10 | RLSA-2026:4473 |
| Rocky Linux 8 | python3.12 | 3.12.12-3.el8_10 | RLSA-2026:4463 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | python +1 | 2.7.18-150000.102.1 | SUSE-SU-2026:0590-1 |
| SLES 15 SP7 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES 15 SP7 | python311-core | 3.11.14-150600.3.44.1 | SUSE-SU-2026:0767-1 |
| SLES 15 SP6 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES 15 SP6 | python311 +1 | 3.11.14-150600.3.44.1 | SUSE-SU-2026:0767-1 |
| SLES 15 SP6 | python312 +1 | 3.12.12-150600.3.43.1 | SUSE-SU-2026:0644-1 |
| SLES 15 SP5 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES 15 SP5 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
| SLES 15 SP5 | python39 +1 | 3.9.25-150300.4.93.1 | SUSE-SU-2026:0643-1 |
| SLES 15 SP4 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES 15 SP4 | python310 +1 | 3.10.19-150400.4.97.1 | SUSE-SU-2026:0613-1 |
| SLES 15 SP4 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
| SLES 12 SP5 | python +2 | 2.7.18-33.63.1 | SUSE-SU-2026:0663-1 |
| SLES 12 SP5 | python3 +1 | 3.4.10-25.172.1 | SUSE-SU-2026:0645-1 |
| SLES 12 SP5 | python36 +1 | 3.6.15-100.1 | SUSE-SU-2026:0612-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 3 | python311 +1 | 3.11.14-150600.3.44.1 | SUSE-SU-2026:0767-1 |
| SLES 3 | python313 +1 | 3.13.14-150700.4.53.1 | SUSE-SU-2026:3649-1 |
| SLES for SAP 16.0 | python313 +2 | 3.13.14-160000.2.1 | SUSE-SU-2026:23303-1 |
| SLES for SAP 15 SP6 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES for SAP 15 SP6 | python311 +1 | 3.11.14-150600.3.44.1 | SUSE-SU-2026:0767-1 |
| SLES for SAP 15 SP6 | python312 +1 | 3.12.12-150600.3.43.1 | SUSE-SU-2026:0644-1 |
| SLES for SAP 15 SP5 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES for SAP 15 SP5 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
| SLES for SAP 15 SP5 | python39 +1 | 3.9.25-150300.4.93.1 | SUSE-SU-2026:0643-1 |
| SLES for SAP 15 SP4 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLES for SAP 15 SP4 | python310 +1 | 3.10.19-150400.4.97.1 | SUSE-SU-2026:0613-1 |
| SLES for SAP 15 SP4 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
| SLES 16.0 | python313 +2 | 3.13.14-160000.2.1 | SUSE-SU-2026:23303-1 |
| SLE Micro 6.2 | python313 +1 | 3.13.14-160000.2.1 | SUSE-SU-2026:23159-1 |
| SLE Micro 6.1 | python311 +1 | 3.11.14-slfo.1.1_3.1 | SUSE-SU-2026:20665-1 |
| SLE Micro 6.0 | python311 +1 | 3.11.14-3.1 | SUSE-SU-2026:20710-1 |
| SLE Micro 5.5 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE Micro 5.4 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE Micro 5.3 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE Micro 5.2 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE HPC 15 SP5 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE HPC 15 SP5 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
| SLE HPC 15 SP4 | python3 +1 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| SLE HPC 15 SP4 | python310 +1 | 3.10.19-150400.4.97.1 | SUSE-SU-2026:0613-1 |
| SLE HPC 15 SP4 | python311 +2 | 3.11.14-150400.9.75.1 | SUSE-SU-2026:0693-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python310 | 3.10.19-4.1 | openSUSE-SU-2026:10200-1 |
| openSUSE Tumbleweed | python311 | 3.11.14-4.1 | openSUSE-SU-2026:10221-1 |
| openSUSE Tumbleweed | python312 | 3.12.12-5.1 | openSUSE-SU-2026:10222-1 |
| openSUSE Tumbleweed | python313 | 3.13.14-1.1 | openSUSE-SU-2026:11342-1 |
| openSUSE Tumbleweed | python314 | 3.14.3-1.1 | openSUSE-SU-2026:10206-1 |
| openSUSE Tumbleweed | python315 | 3.15.0~a3-4.1 | openSUSE-SU-2026:10152-1 |
| openSUSE Leap 16.0 | python313 +4 | 3.13.14-160000.2.1 | openSUSE-SU-2026:21595-1 |
| openSUSE Leap 15.6 | python +2 | 2.7.18-150000.102.1 | SUSE-SU-2026:0590-1 |
| openSUSE Leap 15.6 | python3 +2 | 3.6.15-150300.10.106.1 | SUSE-SU-2026:0664-1 |
| openSUSE Leap 15.6 | python310 +2 | 3.10.19-150400.4.97.1 | SUSE-SU-2026:0613-1 |
| openSUSE Leap 15.6 | python311 +2 | 3.11.14-150600.3.44.1 | SUSE-SU-2026:0767-1 |
| openSUSE Leap 15.6 | python312 +2 | 3.12.12-150600.3.43.1 | SUSE-SU-2026:0644-1 |
| openSUSE Leap 15.6 | python39 +2 | 3.9.25-150300.4.93.1 | SUSE-SU-2026:0643-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | python3 +1 | No fix yet | — |
| Azure Linux 2 (CBL-Mariner) | python3 | No fix yet | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | python3 +7 | 3.12.12-3.0.1.el10_1.1 | ELSA-2026-4713 |
| Oracle Linux 9 | python3 +7 | 3.9.25-3.0.1.el9_7.1 | ELSA-2026-4168 |
| Oracle Linux 9 | python3.11 +6 | 3.11.13-5.1.0.1.el9_7 | ELSA-2026-4216 |
| Oracle Linux 9 | python3.12 +6 | 3.12.12-4.0.1.el9_7.1 | ELSA-2026-4165 |
| Oracle Linux 8 | python3-idle +6 | 3.6.8-73.0.1.el8_10 | ELSA-2026-2128 |
| Oracle Linux 8 | python3.11 +7 | 3.11.13-5.0.1.el8_10 | ELSA-2026-4473 |
| Oracle Linux 8 | python3.12 +7 | 3.12.12-3.el8_10 | ELSA-2026-4463 |
| Oracle Linux 7 | python +6 | 2.7.5-94.0.5.el7_9 | ELSA-2026-5393 |
| Oracle Linux 7 | python3 +6 | 3.6.8-21.0.9.el7_9 | ELSA-2026-6464 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | python-3.10 +3 | No fix yet | — |
| Wolfi rolling | python-3.12 | 3.12.16-r2 | — |
Advisories 50
- WID-SEC-2026-2189 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 2, 2026
- ALSA-2026:4168 Moderate: python3.9 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4165 Moderate: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4216 Moderate: python3.11 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4713 Moderate: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4463 Moderate: python3.12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:4473 Moderate: python3.11 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:2128 Moderate: python3 security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-1007 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026
- RHSA-2026:8822 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:8824 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 17, 2026
- RHSA-2026:7443 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2026:5994 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- WID-SEC-2026-0209 Cpython: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 7, 2026
- WID-SEC-2026-0783 IBM QRadar SIEM: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
- SUSE-SU-2026:23303-1 Security update for python313 SUSE / openSUSE Security Updates · Sep 10, 2026
- SUSE-SU-2026:23159-1 Security update for python313 SUSE / openSUSE Security Updates · Aug 22, 2026
- openSUSE-SU-2026:21595-1 Security update for python313 SUSE / openSUSE Security Updates · Aug 21, 2026
- SUSE-SU-2026:3649-1 Security update for python313 SUSE / openSUSE Security Updates · Aug 21, 2026
- openSUSE-SU-2026:11342-1 python313-3.13.14-1.1 on GA media SUSE / openSUSE Security Updates · Jul 23, 2026
- RHSA-2026:6253 Red Hat Security Advisory: python3.11 security update Red Hat Security Advisories (RHSA) · Jul 3, 2026
- RHSA-2026:4713 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jul 3, 2026
- RHSA-2026:4473 Red Hat Security Advisory: python3.11 security update Red Hat Security Advisories (RHSA) · Jul 3, 2026
- RHSA-2026:4463 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jul 3, 2026
- RHSA-2026:2128 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jul 3, 2026
- RHSA-2026:6464 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:6008 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5399 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5315 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5225 Red Hat Security Advisory: python3.9 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5226 Red Hat Security Advisory: python3.9 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5223 Red Hat Security Advisory: python3.11 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5221 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5218 Red Hat Security Advisory: python3.9 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5219 Red Hat Security Advisory: python3.9 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5216 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5215 Red Hat Security Advisory: python3 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:5152 Red Hat Security Advisory: python3.11 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:4746 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:4216 Red Hat Security Advisory: python3.11 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:4168 Red Hat Security Advisory: python3.9 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:4165 Red Hat Security Advisory: python3.12 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2026:6007 Red Hat Security Advisory: python security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2026:5393 Red Hat Security Advisory: python security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RLSA-2026:2128 Moderate: python3 security update Rocky Linux Security Advisories · May 21, 2026
- WID-SEC-2026-0778 Dell Secure Connect Gateway Policy Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- ELSA-2026-6464 Moderate: python3 security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 16, 2026
- ELSA-2026-5393 Moderate: python security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 16, 2026
- RLSA-2026:4713 Moderate: python3.12 security update Rocky Linux Security Advisories · Mar 27, 2026
- openSUSE-SU-2026:10221-1 python311-3.11.14-4.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
References
- https://github.com/python/cpython/pull/143924 patch
- https://github.com/python/cpython/issues/143923 issue-tracking
- https://mail.python.org/archives/list/security-announce@python.org/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/ vendor-advisory
- https://github.com/python/cpython/commit/b234a2b67539f787e191d2ef19a7cbdce32874e7 patch