CVE-2026-9255
7.8 · HIGHOverview
CVE-2026-9255 is a high-severity vulnerability affecting amazon kiro_cli. It was published on May 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from amazon. Update kiro_cli to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| amazon | kiro_cli | >= 0, < 1.28.0 | Affected |
Frequently Asked Questions
What is CVE-2026-9255?
CVE-2026-9255 is a high-severity vulnerability affecting amazon kiro_cli. It was published on May 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2026-9255?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-9255?
Check the references section for vendor advisories and patches from amazon. Update kiro_cli to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-9255?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-9255 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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