Symlink Attack Affecting python/cpython package, versions [,v3.14.0b1)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (8th percentile)

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  • Snyk IDSNYK-UNMANAGED-PYTHONCPYTHON-19846657
  • published16 Sept 2026
  • disclosed14 Sept 2026
  • creditJing Qian

Introduced: 14 Sep 2026

NewCVE-2026-82049  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade python/cpython to version v3.14.0b1 or higher.

Overview

Affected versions of this package are vulnerable to Symlink Attack in the tarfile module when extracting archives containing a hard link to a symbolic link. An attacker can access or modify files outside the intended extraction directory by supplying a specially crafted archive.

CVSS Base Scores

version 4.0
version 3.1