CVE-2026-9255 (GCVE-0-2026-9255)
Vulnerability from cvelistv5 – Published: 2026-05-22 16:38 – Updated: 2026-05-23 03:55
VLAI
EPSS
VEX
Title
Tool Execution Without Authorization via Piped Stdin in Kiro CLI
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-22 00:00 UTC
CWE
- CWE-862 - Missing Authorization
Assigner
AMZN
CNA
References
2 references
| URL | Tags |
|---|---|
| https://kiro.dev/changelog/cli/1-28/ | release-notes |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
Impacted products
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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