CVE-2026-4269

HIGH

7.5

Descripcion

A missing S3 ownership verification in the Bedrock AgentCore Starter Toolkit before version v0.1.13 may allow a remote actor to inject code during the build process, leading to code execution in the AgentCore Runtime. This issue only affects users of the Bedrock AgentCore Starter Toolkit before version v0.1.13 who build or have built the Toolkit after September 24, 2025. Any users on a version >=v0.1.13, and any users on previous versions who built the toolkit before September 24, 2025 are not affected. To remediate this issue, customers should upgrade to version v0.1.13.

Detalles CVE

Puntuacion CVSS v3.17.5

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado3/16/2026

Ultima modificacion3/17/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-283CWE-340

Referencias

https://aws.amazon.com/security/security-bulletins/2026-008-AWS/(ff89ba41-3aa1-4d27-914a-91399e9639e5)

https://github.com/aws/bedrock-agentcore-starter-toolkit/releases/tag/v0.1.13(ff89ba41-3aa1-4d27-914a-91399e9639e5)

Correlaciones IOC

Sin correlaciones registradas

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