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CVE-2026-9255

Estado: AnalizadaAlta (8.4)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L + UI:A indica ejecución en cliente (T1203). El atacante ejecuta comandos arbitrarios (T1059) mediante stdin sin aprobación del usuario. Además obtiene acceso con privilegios de la herramienta (T1078).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationUser TrainingUser Account ManagementRestrict Web-Based Content

Tecnologías afectadas (1)

Amazon — Kiro CLI

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-9255",
  "cveTags": [],
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          "options": [
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
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              "version": "0",
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              "versionType": "custom"
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  "published": "2026-05-22T17:16:49.767",
  "references": [
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      "url": "https://aws.amazon.com/security/security-bulletins/2026-035-aws/",
      "tags": [
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      "url": "https://kiro.dev/changelog/cli/1-28/",
      "tags": [
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  "vulnStatus": "Analyzed",
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      "description": [
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          "value": "CWE-862"
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      "value": "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.\n\n\n\nWe recommend you to upgrade to kiro-cli version 1.28.0 or later."
    },
    {
      "lang": "es",
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    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
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}