Vulnerability Details CVE-2026-9255
Missing input source validation in the tool authorization prompt in Kiro CLI before 1.28.0 allows a local attacker to execute arbitrary tools, including shell commands, without user approval by crafting content that is piped to kiro-cli via stdin.
We recommend you to upgrade to kiro-cli version 1.28.0 or later.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 2.1%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-9255
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cpe:2.3:a:amazon:kiro_cli:-
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cpe:2.3:a:amazon:kiro_cli:1.20.0
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cpe:2.3:a:amazon:kiro_cli:1.20.1
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cpe:2.3:a:amazon:kiro_cli:1.20.2
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cpe:2.3:a:amazon:kiro_cli:1.21.0
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cpe:2.3:a:amazon:kiro_cli:1.22.0
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cpe:2.3:a:amazon:kiro_cli:1.23.0
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cpe:2.3:a:amazon:kiro_cli:1.23.1
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cpe:2.3:a:amazon:kiro_cli:1.24.0
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cpe:2.3:a:amazon:kiro_cli:1.25.0
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cpe:2.3:a:amazon:kiro_cli:1.25.1
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cpe:2.3:a:amazon:kiro_cli:1.26.0
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cpe:2.3:a:amazon:kiro_cli:1.27