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CVE-2021-21386 — Vulnerability in apkleaks — CVE Details

CRITICAL

Improper Neutralization of Argument Delimiters in a Decompiling Package Process in APKLeaks

Published June 29, 2026Updated July 1, 2026Source: osv

Summary

APKLeaks prior to v2.0.4 allows remote authenticated attackers to execute arbitrary OS commands via package name inside the application manifest. ### Impact An authenticated attacker could include arguments that allow unintended commands or code to be executed, allow sensitive data to be read or modified, or could cause other unintended behavior through malicious package names. ### References - a966e781499ff6fd4eea66876d7532301b13a382 ### For more information If you have any questions or comments about this advisory: * Email me at [me@dw1.io](mailto:me@dw1.io)

Advisory Timeline

  • First published June 29, 2026 (105 days ago).
  • Last revised July 1, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update apkleaks to 2.0.4 or later
pip install "apkleaks>=2.0.4"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
apkleaks
pypi
All versions2.0.4

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2021-21386?
Improper Neutralization of Argument Delimiters in a Decompiling Package Process in APKLeaks This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.3/10).
How do I check if my project is affected by CVE-2021-21386?
CVE-2021-21386 affects apkleaks. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-21386 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.3

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-281
GHSA-8434-v7xw-8m9x

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