CVE-2026-3219: python packaging authority pip
Vulnerability summary
CVE-2026-3219 is a medium (CVSS 4.6) vulnerability in python packaging authority pip. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 22 · Related 22Timeline
- 20-04-2026PublishedVulnerability first disclosed.
- 20-04-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
8 scores · 8 sources · 2 versions- OSV · PypiEcosystem advisory · calculated4.6MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- OSV · UbuntuEcosystem advisory · calculated4.6MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS: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
- OSV · WolfiEcosystem advisory · calculated4.6MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated4.6MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- NVDNIST4.6MediumCVSS: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
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.04 pp
From 0.14% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard82 products
- ansible-operator< 1.42.2-r5
- ansible-operator-fips< 1.42.2-r5
- azure-functions-host-python3.11-worker< 4.1048.200-r1
- azure-functions-host-python3.12-worker< 4.1048.200-r1
- azure-functions-host-python3.13-worker< 4.1048.200-r1
Wolfi40 products
- datadog-agent-7.72< 7.72.4-r22
- datadog-agent-7.72-core-integrations< 7.72.4-r22
- datadog-agent-7.73< 7.73.3-r13
- datadog-agent-7.73-core-integrations< 7.73.3-r13
- datadog-agent-7.74< 7.74.1-r15
Redhat3 products
- python-pip< 0:26.1.1-3.hum1
- python-pip-wheel< 0:26.1.1-3.hum1
- python3-pip< 0:26.1.1-3.hum1
Debian1 product
- python-pipAll versions (No fix recorded) | < 26.1.1+dfsg-1
Opensuse1 product
- python-pip&distro=openSUSE Tumbleweed< 26.1-1.1
PyPI1 product
- pip< 26.1
Python packaging authority1 product
- pip< 26.1
Ubuntu1 product
- python-pipAll versions (No fix recorded)
8 vendors · 130 products
References
20 links- mail.python.org/archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ/Vendor AdvisoryARTICLEREPORTAdvisory
- github.com/pypa/pipPACKAGE
- pypi.org/project/pipPACKAGE
Show all 20 references
- images.redhat.comARTICLE