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CVE-2026-85012 is a CWE-78 OS command injection vulnerability in the blueprint resynthesis framework of AWS codecatalyst-blueprints versions before 0.3.156. The framework passed the owner field of a local merge-strategy entry to an operating-system command through a shell without validation. Shell metacharacters in that field could therefore alter command execution and run attacker-controlled commands in the resynthesis environment. Version 0.3.156 removes shell interpretation by executing the command directly and rejects values that do not match an allowlisted command form.
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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.
7 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.