Vulnerability · Published Feb 2, 2026 · Assigned by PSF
CVE-2026-1703Limited path traversal when installing wheel archives
Low 2.0
In plain English
A low-severity path traversal in pip from Python Packaging Authority. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)2.0Low
Exploit odds (30 days)0.4%top 61.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | python-pip | no fix listed | DEBIAN-CVE-2026-1703 |
| Debian:13 | python-pip | no fix listed | DEBIAN-CVE-2026-1703 |
| Debian:14 | python-pip | 26.0+dfsg-1 | DEBIAN-CVE-2026-1703 |
| PyPI | pip | 26.0 | PYSEC-2026-1796 |
| PyPI | pip | 26.0 | GHSA-6vgw-5pg2-w6jp |
| Ubuntu:25.10 | python-pip | no fix listed | UBUNTU-CVE-2026-1703 |
| Ubuntu:26.10 | python-pip | no fix listed | UBUNTU-CVE-2026-1703 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Python Packaging Authority | pip | 0 – before 26.0 |
Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N