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CVE-2026-42049— jadx: RCE Via Groovy Code Injection in Gradle Export

Quick assessment

Affected
skylot jadx
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Skylot jadx是Skylot个人开发者开源的一款Android反编译分析工具。 skylot jadx 1.5.6之前版本存在代码注入漏洞，该漏洞源于在对AndroidManifest中的android:versionName值未进行适当清理的情况下将其插入到生成的Groovy模板中，可能导致恶意APK突破字符串环境，在受害者机器上执行攻击者控制的Groovy代码。

AI Predicted 8.8 Difficulty: Easy EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
skylot jadx < 1.5.6 affected
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I. Basic Information for CVE-2026-42049

Vulnerability Information
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Vulnerability Title
jadx: RCE Via Groovy Code Injection in Gradle Export
Source: CVE Program / CVE List V5
Vulnerability Description
jadx is a Dex to Java decompiler. Prior to 1.5.6, jadx inserts the android:versionName value from an AndroidManifest into the generated app/build.gradle Groovy template without proper sanitization when exporting a decompiled APK as an Android Gradle project. A malicious APK can break out of the string context so that opening or building the exported Gradle project executes attacker-controlled Groovy code on the victim machine. This issue is fixed in version 1.5.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
skylot jadx 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Skylot jadx是Skylot个人开发者开源的一款Android反编译分析工具。 skylot jadx 1.5.6之前版本存在代码注入漏洞，该漏洞源于在对AndroidManifest中的android:versionName值未进行适当清理的情况下将其插入到生成的Groovy模板中，可能导致恶意APK突破字符串环境，在受害者机器上执行攻击者控制的Groovy代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
skylot jadx < 1.5.6 -

II. Public POCs for CVE-2026-42049

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III. Intelligence Information for CVE-2026-42049

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Patches & Fixes for CVE-2026-42049 (1)

Vendor Advisories for CVE-2026-42049 (1)

Vendor Pages for CVE-2026-42049 (1)

Same Patch Batch · skylot · 2026-07-14 · 3 CVEs total

CVE-2026-54684 7.0 HIGH jadx: XAPK archive entries with absolute paths can plant drop-in plugins and achieve code
CVE-2026-42447 3.6 LOW jadx: HTML Injection in Summary panel

IV. Related Vulnerabilities

Same product: jadx
Same vendor: skylot
Same weakness: CWE-94

V. Comments for CVE-2026-42049

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