CVE-2026-119148
Incomplete string validation in AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow a third party to impersonate the AWS KMS endpoint. To remediate this issue, users should rebuild any custom enclave image against aws-nitro-enclaves-sdk-c 0.4.6.
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Show me how to fix itTimeline
- First covered by RedTeamDaily
- Published by NVD
- Last updated by NVD
Coverage
AWS Nitro Enclaves SDK for C hit by use-after-free and KMS impersonation flaws
AWS published bulletin 2026-157-AWS covering two issues in the AWS Nitro Enclaves SDK for C, affecting versions up to and including v0.4.5. CVE-2026-119116 is a use-after-free in the kmstool-enclave example application that lets an application on the parent EC2 instance send crafted vsock messages to run arbitrary code inside the enclave. CVE-2026-119148 is an input validation flaw in the SDK library that could let a third party impersonate KMS and inject forged responses.
Sources: NVD and CISA known exploited vulnerabilities catalogue.