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.
CVE-2026-3219
This medium-severity CVE scores 4.6 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.6
- EG Score
- 4.6(medium)
- EPSS
- 4.1%
- KEV
- Not listed
Published
April 20, 2026
Last Modified
April 20, 2026
References (3)
- cna@pythonhttps://github.com/pypa/pip/pull/13870
- cna@pythonhttps://mail.python.org/archives/list/security-announce@python.org/thread/QAJ5JIVWWCAJ4EZL2FP5MOOW35JS7LRJ/
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/04/20/8
Vendor Advisories for CVE-2026-3219(4)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:36359Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
- CVE-2026-3219Microsoft Security Response Center (MSRC)Medium
pip doesn't reject concatenated ZIP and tar archives
- RHSA-2026:20074Red Hat Product SecurityMedium
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
- GHSA-58qw-9mgm-455vGitHub Security AdvisoriesMedium
pip has an interpretation conflict due to handling both concatenated tar and ZIP files as ZIP files
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | python-pip-main-26.1.1-3.hum1 | 2026-05-21 | redhat |
| pip | pip | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| pip | 0.2 ... 9.0.3 (154 versions) | 26.1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 34× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 102 total refreshes for this CVE.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-20 07:02 UTCOSV refresh
- 2026-07-19 14:31 UTCEPSS rescore
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- 2026-06-30 23:22 UTCEPSS rescore
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- 2026-06-14 23:18 UTCEPSS rescore
- 2026-06-14 18:54 UTCVendor advisory
- 2026-06-13 23:00 UTCEPSS rescore
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- 2026-06-12 23:12 UTCEPSS rescore
- 2026-06-11 18:35 UTCVendor advisory
- 2026-06-11 14:00 UTCEPSS rescore
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- 2026-06-10 11:57 UTCVendor advisory
- 2026-06-09 09:52 UTCVendor advisory
- 2026-06-08 14:17 UTCEPSS rescore
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- 2026-06-08 06:51 UTCVendor advisory
- 2026-06-07 15:25 UTCEPSS rescore
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- 2026-06-07 15:25 UTCEPSS rescore
- 2026-06-07 04:47 UTCVendor advisory
- 2026-06-06 13:47 UTCEPSS rescore
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- 2026-06-06 00:58 UTCVendor advisory
- 2026-06-05 22:47 UTCEPSS rescore
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- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-05 06:10 UTCEPSS rescore
- 2026-06-04 22:54 UTCVendor advisory
- 2026-06-04 13:12 UTCEPSS rescore
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- 2026-06-03 20:50 UTCVendor advisory
- 2026-06-02 20:13 UTCEPSS rescore
- 2026-06-02 18:44 UTCVendor advisory
- 2026-06-01 16:39 UTCEG score recompute▲ 4.60
- 2026-06-01 16:39 UTCVendor advisory
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 13:52 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
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- 2026-05-20 16:42 UTCEG score recompute
- 2026-05-20 16:42 UTCVendor advisory
- 2026-05-20 16:42 UTCGHSA enrichment
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat · msrc
Same CWE
10 shownCWE-434
Frequently asked(5)
What is CVE-2026-3219?
When was CVE-2026-3219 disclosed?
Is CVE-2026-3219 actively exploited?
What is the CVSS score of CVE-2026-3219?
How do I remediate CVE-2026-3219?
Dependency Blast Radius
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