# CVE-2026-119148: Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint

> CVE-2026-119148: Unvalidated parent-supplied AWS Region in AWS aws-nitro-enclaves-sdk-c allows impersonation of the enclave's AWS KMS endpoint. CVSS 6.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-119148
Last updated: 2026-10-30T19:23:54Z

- Published: 2026-10-30 16:12 UTC · Updated: 2026-10-30 19:23 UTC · Assigner: AMZN
- CVSS: 6.5 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
- EPSS: 0.17%, 7th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-807

## Description

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.

## Affected vendors and products

- AWS: aws-nitro-enclaves-sdk-c

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-119148)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-119148)
- [https://aws.amazon.com/security/security-bulletins/2026-157-aws/](https://aws.amazon.com/security/security-bulletins/2026-157-aws/)
- [https://github.com/aws/aws-nitro-enclaves-sdk-c/releases/tag/v0.4.6](https://github.com/aws/aws-nitro-enclaves-sdk-c/releases/tag/v0.4.6)
- [https://github.com/aws/aws-nitro-enclaves-sdk-c/security/advisories/GHSA-f6f6-6f88-r57j](https://github.com/aws/aws-nitro-enclaves-sdk-c/security/advisories/GHSA-f6f6-6f88-r57j)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-119148 · Markdown: https://rewindex.com/cve/CVE-2026-119148.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-119148 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:47:25.080Z