CVE-2021-21386
Improper Neutralization of Argument Delimiters in a Decompiling Package Process
APKLeaks is an open-source project for scanning APK file for URIs, endpoints & secrets. APKLeaks prior to v2.0.3 allows remote attackers to execute arbitrary OS commands via package name inside application manifest. An 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 name. The problem is fixed in version v2.0.6-dev and above.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Improper Neutralization of Argument Delimiters in a Decompiling Package Process
APKLeaks is an open-source project for scanning APK file for URIs, endpoints & secrets. APKLeaks prior to v2.0.3 allows remote attackers to execute arbitrary OS commands via package name inside application manifest. An 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 name. The problem is fixed in version v2.0.6-dev and above.
- Record
CVE-2021-21386- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-88, CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2022-0515
APKLeaks is an open-source project for scanning APK file for URIs, endpoints & secrets. APKLeaks prior to v2.0.3 allows remote attackers to execute arbitrary OS commands via package name inside application manifest. An 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 name. The problem is fixed in version v2.0.6-dev and above.
- Record
EUVD-2022-0515- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8434-v7xw-8m9x
Improper Neutralization of Argument Delimiters in a Decompiling Package Process in APKLeaks
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 [email protected]
- Record
GHSA-8434-v7xw-8m9x- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-78, CWE-88
- Updated
- 2026-11-02
NVD
APKLeaks is an open-source project for scanning APK file for URIs, endpoints & secrets. APKLeaks prior to v2.0.3 allows remote attackers to execute arbitrary OS commands via package name inside application manifest. An 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 name. The problem is fixed in version v2.0.6-dev and above.
- Record
CVE-2021-21386- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-78, CWE-88
- Updated
- 2026-11-02
OSV
APKLeaks is an open-source project for scanning APK file for URIs, endpoints & secrets. APKLeaks prior to v2.0.3 allows remote attackers to execute arbitrary OS commands via package name inside application manifest. An 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 name. The problem is fixed in version v2.0.6-dev and above.
- Record
CVE-2021-21386- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-8434-v7xw-8m9x
Improper Neutralization of Argument Delimiters in a Decompiling Package Process in APKLeaks
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 [email protected]
- Record
GHSA-8434-v7xw-8m9x- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Weakness
- CWE-78, CWE-88
- Updated
- 2026-11-02
OSVPYSEC-2026-281
Improper Neutralization of Argument Delimiters in a Decompiling Package Process in APKLeaks
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 [email protected]
- Record
PYSEC-2026-281- CVSS 3.1
- 9.3 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apkleaksPyPI |
before 2.0.4 | 2.0.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-21386 is a critical vulnerability (CVSS 9.3) in Apkleaks Project Apkleaks, published March 24, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.33%, the 83rd percentile. Fixed in apkleaks 2.0.4.