HOMEVULNERABILITIESCVE-2021-21386
CRITICAL

CVE-2021-21386

CWE-78Published: March 24, 2021· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-21386 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

apkleaks_project1 product(s)
apkleaks
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/dwisiswant0/apkleaks/commit/a966e781499ff6fd4eea66876d7532301b13a382
PATCHhttps://github.com/dwisiswant0/apkleaks/security/advisories/GHSA-8434-v7xw-8m9x
PATCHhttps://github.com/dwisiswant0/apkleaks/commit/a966e781499ff6fd4eea66876d7532301b13a382
PATCHhttps://github.com/dwisiswant0/apkleaks/security/advisories/GHSA-8434-v7xw-8m9x

All References (4)

→
https://github.com/dwisiswant0/apkleaks/commit/a966e781499ff6fd4eea66876d7532301b13a382Patch · Third Party Advisory
→
https://github.com/dwisiswant0/apkleaks/security/advisories/GHSA-8434-v7xw-8m9xPatch · Third Party Advisory
→
https://github.com/dwisiswant0/apkleaks/commit/a966e781499ff6fd4eea66876d7532301b13a382Patch · Third Party Advisory
→
https://github.com/dwisiswant0/apkleaks/security/advisories/GHSA-8434-v7xw-8m9xPatch · Third Party Advisory

Quick Facts

CVE IDCVE-2021-21386
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedMar 24, 2021

Related CVEs (CWE-78)

CVE-2019-5485
10.0
CVE-2023-3939
10.0
CVE-2008-7158
10.0
CVE-2024-24576
10.0
CVE-2026-41900
10.0
CVE-2026-34234
KEV10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-21386 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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