CVE-2026-115791 (GCVE-0-2026-115791)

Vulnerability from cvelistv5 – Published: 2026-11-10 16:33 – Updated: 2026-11-11 04:56
VLAI
Title
Prevent shadowing stdlib in gzip/tarfile/zipfile CLI during extraction
Summary
When tarfile or zipfile command line interface (CLI) is used to decompress an archive, a Python script shadowing the stdlib can be created. Then if an error occurs during decompressing the next file, the newly created Python script is executed. This is especially true if the created Python is called traceback.py. The problem is that Python adds the current directory to sys.path when python -m MODULE is run, and the archive is also decompressed in the current directory. The fix removes sys.path[0] in gzip, tarfile and zipfile command line interface to prevent shadowing standard library modules from extracted files.
Severity
5.3 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 00:00 UTC
CWE
  • CWE-829 - Inclusion of Functionality from Untrusted Control Sphere
Assigner
PSF CNA under the mitre root
CNA scorecard B 78/100 over 32 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Python Software Foundation CPython Affected: 0 , < 3.16.0 (python)
guessed Create a notification for this product.
Credits
Jelle Zijlstra (https://github.com/jelle-openai) Victor Stinner (https://github.com/vstinner) Ethan Furman (https://github.com/ethanfurman) Kirill Podoprigora (https://github.com/Eclips4) Seth Larson (https://github.com/sethmlarson)
Show details on NVD website
To clipboard 

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.