medium 4.6

CVE-2026-3219 json

pip doesn't reject concatenated ZIP and tar archives

published 2026-04-20 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-23866 , GHSA-58qw-9mgm-455v , PYSEC-2026-2875

cvss: 4.6; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits: 0; none known

pip handles concatenated tar and ZIP files as ZIP files regardless of filename or whether a file is both a tar and ZIP file. This behavior could result in confusing installation behavior, such as installing "incorrect" files according to the filename of the archive. New behavior only proceeds with installation if the file identifies uniquely as a ZIP or tar archive, not as both.

Patch / fix

fixed in 2 distros 5 links 1

pypi pip 26.1
Python Packaging Authority pip 26.1

debian red hat suse opensuse azure linux

python-pip Debian 14 26.1.1+dfsg-1

debian advisories DEBIAN-CVE-2026-3219

python-pip hummingbird 1 26.1.2-1.hum1
python3-pip hummingbird 1 26.1.2-1.hum1
python-pip-wheel hummingbird 1 26.1.2-1.hum1
python-pip hummingbird 1 26.1.1-3.hum1
python3-pip hummingbird 1 26.1.1-3.hum1
python-pip-wheel hummingbird 1 26.1.1-3.hum1

red hat advisories RHSA-2026:36359 RHSA-2026:20074

python3 SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +11 more 3.6.15-150300.10.129.1
python3-core SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +12 more 3.6.15-150300.10.129.1
grafana Multi Linux Manager Tools SLE-15 12.4.10-150002.4.27.1
mgr-push Multi Linux Manager Tools SLE-15 5.2.5-150002.3.12.1
spacecmd Multi Linux Manager Tools SLE-15 5.2.10-150002.3.15.1
uyuni-tools Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 5.2.17-150002.3.20.1
venv-salt-minion Multi Linux Manager Tools SLE-Micro-5, Multi Linux Manager Tools SLE-15 3006.0-150002.5.22.1
spacewalk-client-tools Multi Linux Manager Tools SLE-15 5.2.7-150002.3.12.1

suse advisories SUSE-SU-2026:4754-1 SUSE-SU-2026:4743-1 SUSE-SU-2026:4585-1 SUSE-SU-2026:4584-1 SUSE-SU-2026:4583-1 SUSE-SU-2026:4582-1

python310 openSUSE Tumbleweed 3.10.20-10.1
python-pip openSUSE Tumbleweed 26.1-1.1

opensuse advisories openSUSE-SU-2026:11690-1 openSUSE-SU-2026:10645-1

python-pip Azure Linux 3.0 24.2-8
python-virtualenv Azure Linux 3.0 20.36.1-4

azure linux advisories AZL-83184 AZL-83432

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

github.com/pypa/pip#13870 pull request

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-3219 updated 2026-11-05 cvss 5.0

pip: pip: Incorrect file installation due to improper archive handling

Red Hat Lightspeed Core lightspeed-core/rag-tool-rhel9, lightspeed-core/lightspeed-stack-rhel9 Red Hat Migration Toolkit for Applications 8 mta/mta-rhel9-operator
affected: no fix available “Fix deferred”
Red Hat Migration Toolkit for Virtualization mtv-candidate/mtv-rhel9-operator, migration-toolkit-virtualization/mtv-rhel9-operator
affected: no fix available, no fix planned “Out of support scope”
Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-service-api-rhel9 Red Hat OpenShift Service Mesh 3 openshift-service-mesh/kiali-rhel9-operator Red Hat Pen Drive Powered by Red Hat Lightspeed pen-drive/pen-drive-scanner-rhel9 Red Hat AI Inference Server rhaiis/vllm-cpu-rhel9, rhaiis/vllm-tpu-rhel9, rhaiis/vllm-cuda-rhel9, rhaiis/vllm-rocm-rhel9, rhaiis/vllm-spyre-rhel9, rhaiis/vllm-neuron-rhel9, +2 more
affected: no fix available “Fix deferred”
Red Hat Ansible Automation Platform 2 automation-controller, ansible-automation-platform-26/gateway-rhel9, ansible-automation-platform-24/controller-rhel8, ansible-automation-platform-25/controller-rhel8, ansible-automation-platform-26/controller-rhel9, ansible-automation-platform-26/de-minimal-rhel9, +9 more
affected: no fix available, no fix planned “Out of support scope”
Red Hat Developer Hub 1 rhdh/rhdh-hub-rhel9 Red Hat Discovery 2 discovery/discovery-server-rhel9 Red Hat Enterprise Linux 8 ubi8/python-36, ubi8/python-39, ubi8/python-311, ubi8/python-312
affected: no fix available “Fix deferred”
Red Hat Enterprise Linux 9 ubi9/python-39, rhel9/python-39, ubi9/python-311, ubi9/python-312, rhel9/python-311, ubi9/python-312-minimal
affected: no fix available, no fix planned “Out of support scope”
Red Hat Enterprise Linux 10 ubi10/python-312-minimal, rhel10/python-312-minimal Red Hat Enterprise Linux AI (RHEL AI) 3 rhelai3/bootc-cuda-rhel9, rhelai3/bootc-rocm-rhel9, rhelai3/bootc-aws-cuda-rhel9, rhelai3/bootc-gcp-cuda-rhel9, rhelai3/disk-image-cuda-rhel9, rhelai3/bootc-azure-cuda-rhel9, +1 more Red Hat OpenShift AI (RHOAI) rhoai/odh-mlserver-rhel9, rhai/base-image-cpu-rhel9, rhai/base-image-tpu-rhel9, rhoai/odh-vllm-cuda-rhel9, rhoai/odh-vllm-rocm-rhel9, rhoai/odh-caikit-nlp-rhel9, +44 more Red Hat OpenShift Container Platform 4 openshift4/ose-ansible-rhel9-operator Red Hat OpenShift Dev Spaces devspaces/udi-rhel9
affected: no fix available “Fix deferred”
Red Hat Quay 3 quay/quay-rhel8, quay/quay-rhel9
affected: no fix planned “Out of support scope”

show 5 more

Red Hat Satellite 6 satellite/foreman-mcp-server-rhel9, satellite/iop-advisor-engine-rhel9, satellite/iop-advisor-backend-rhel9
affected: no fix available “Fix deferred”
Red Hat Trusted Artifact Signer rhtas/segment-reporting-rhel9, rhtas/model-transparency-rhel9
affected: no fix available, no fix planned “Out of support scope”
Red Hat Service Telemetry Framework 1.5 stf/smart-gateway-rhel9-operator, stf/prometheus-webhook-snmp-rhel9, stf/service-telemetry-rhel9-operator
affected: no fix available “Fix deferred”
Red Hat Hardened Images python-pip 26.1.1-3.hum1, python-pip 26.1.2-1.hum1, python3-pip 26.1.1-3.hum1, python3-pip 26.1.2-1.hum1, python-pip-wheel 26.1.1-3.hum1, python-pip-wheel 26.1.2-1.hum1
fixed: vendor fix RHSA-2026:20074
Red Hat OpenShift AI 3.0 rhai/base-image-cuda-rhel9 1793042067, rhai/base-image-cuda-rhel9 1793328358, rhai/base-image-rocm-rhel9 1793041981
fixed: vendor fix RHSA-2026:91236

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-20)

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.6	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	4.0	4.6	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem	package	affected	fixed in
pypi	pip	<26.1	26.1

Affected products

Python Packaging Authority pip

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

github.com /pypa/pip/pull/13870
patch, web
mail.python.org /archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ/
vendor-advisory
openwall.com /lists/oss-security/2026/04/20/8
web
nvd.nist.gov /vuln/detail/CVE-2026-3219
advisory
github.com /pypa/pip/issues/13867
web
github.com /pypa/pip
package
mail.python.org /archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ
web
pypi.org /project/pip
package
github.com /advisories/GHSA-58qw-9mgm-455v
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary