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CVE-2026-42049 is a code execution vulnerability in jadx, a Dex-to-Java decompiler. In versions prior to 1.5.6, jadx exports decompiled APKs as Android Gradle projects and inserts the AndroidManifest android:versionName value into the generated app/build.gradle Groovy template without proper sanitization. Because this manifest field is embedded into executable Groovy build script content, a malicious APK can supply a crafted versionName that escapes the intended string context and injects attacker-controlled Groovy code. When the victim opens or builds the exported Gradle project, the injected Groovy code is executed on the victim system.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.