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CVE-2026-1703

Limited path traversal when installing wheel archives

LOW
2
CVSS Score
Published: February 2, 2026 at 02:43 PM UTC
Updated: June 17, 2026 at 10:16 AM UTC
2 products affected across 2 vendorsPipPip

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Severity
LOW2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

When pip is installing and extracting a maliciously crafted wheel archive, files may be extracted outside the installation directory. The path traversal is limited to prefixes of the installation directory, thus isn't able to inject or overwrite executable files in typical situations.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Pip· Pypa
85%
All versions
Pip· Python Packaging Authoritypypi
60%
v < 26.0
Affected range stops below 26.0, so it looks safe — our inference, not a vendor statement

References (3)

Patch
Source: cverecord
https://github.com/pypa/pip/pull/13777
Patch
Source: cverecord
https://github.com/pypa/pip/commit/8e227a9be4faa9594e05d02ca05a413a2a4e7735
Vendor Advisory
Source: cverecord
https://mail.python.org/archives/list/[email protected]/thread/WIEA34D4TABF2UNQJAOMXKCICSPBE2DJ/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2LOWPSF
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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