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The vulnerability of the commonprefix() function in the pip module of the Python programming language allows a malicious actor to gain access to add and modify any arbitrary files.

🗓️ 11 Feb 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 2 Views

The commonprefix function in the Python package installer has an incorrect path name limit, enabling an attacker to add or modify arbitrary files.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Unrestricted upload of file with dangerous type, improper certificate validation, and other vulnerabilities might affect IBM Storage Defender - Resiliency Service
24 Jun 202616:05
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in pip affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.
22 Jun 202613:49
–ibm
IBM Security Bulletins		Security Bulletin: DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
16 Jun 202618:26
–ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect Enterprise Certified Container UBI updates
7 May 202613:38
–ibm
ATTACKERKB		CVE-2026-1703
2 Feb 202614:43
–attackerkb
Tenable Nessus		Amazon Linux 2023 : python3.13-pip, python3.13-pip-wheel (ALAS2023-2026-1490)
30 Mar 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.12-pip, python3.12-pip-wheel (ALAS2023-2026-1530)
1 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3.11-pip, python3.11-pip-wheel (ALAS2023-2026-1531)
1 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2023 : python3-pip, python3-pip-wheel (ALAS2023-2026-1589)
30 Apr 202600:00
–nessus
Tenable Nessus		Amazon Linux 2 : python-pip, --advisory ALAS2-2026-3256 (ALAS-2026-3256)
30 Apr 202600:00
–nessus
Rows per page
Vulners
Node
googleandroid_studioMatch2025.2.3.9
OR
pythonpython-pipMatch26.0

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18 May 2026 00:00Current
7.1High risk
Vulners AI Score7.1
CVSS 33.5
CVSS 24
EPSS0.0039
commonprefix functionPython package installerpath name limitarbitrary file modification
2