{"id":"CVE-2026-119116","aliases":[],"cve":{"records":[{"id":"CVE-2026-119116","source":"AMZN","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-29T14:19:52.182Z","published":"2026-10-30T16:10:39.338Z","modified":"2026-10-30T20:00:57.890Z"}],"publishers":[{"name":"AMZN","role":"CNA","organizationId":"ff89ba41-3aa1-4d27-914a-91399e9639e5","modified":"2026-10-30T16:21:02.630Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-30T20:00:57.890Z"}],"references":[{"url":"https://github.com/aws/aws-nitro-enclaves-sdk-c/releases/tag/v0.4.6","tags":["release-notes","patch"],"source":"AMZN"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-157-aws/","tags":["vendor-advisory"],"source":"AMZN"},{"url":"https://github.com/aws/aws-nitro-enclaves-sdk-c/security/advisories/GHSA-cfhm-qfw4-j7qq","tags":["third-party-advisory"],"source":"AMZN"}],"weaknesses":[{"id":"CWE-416","description":"CWE-416 Use after free","source":"AMZN"},{"id":"CWE-415","description":"CWE-415 Double free","source":"AMZN"}],"applicability":[{"source":"AMZN","statements":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:aws:kmstool-enclave:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"0.4.6"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-30T19:21:57.096116Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Use-after-free in the SetClient command handler of kmstool-enclave in AWS aws-nitro-enclaves-sdk-c","titleSource":"AMZN","descriptionSource":"AMZN","description":"A use-after-free and double-free issue in the SetClient command handler of the kmstool-enclave sample application of AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow an application that runs on the parent EC2 instance to corrupt heap memory inside a Nitro Enclave which may lead to arbitrary code execution within the enclave.\n\n\n\nTo remediate this issue, users should rebuild any enclave image that includes kmstool-enclave, or code derived from it, against aws-nitro-enclaves-sdk-c 0.4.6.","score":8.7,"severity":"high","published":"2026-10-30T16:10:39.338Z","modified":"2026-10-30T20:00:57.890Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"AWS","name":"kmstool-enclave","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"0.4.6","versionType":"custom"}],"defaultStatus":"unaffected","cpes":[],"source":"AMZN","url":"https://www.cve.org/CVERecord?id=CVE-2026-119116"}],"remediation":[],"references":["https://github.com/aws/aws-nitro-enclaves-sdk-c/releases/tag/v0.4.6","https://aws.amazon.com/security/security-bulletins/2026-157-aws/","https://github.com/aws/aws-nitro-enclaves-sdk-c/security/advisories/GHSA-cfhm-qfw4-j7qq"],"sources":[{"name":"CVE","id":"CVE-2026-119116","modified":"2026-10-30T20:00:57.890Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-119116"}],"assessments":[{"source":"AMZN","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","score":7.8},{"source":"AMZN","vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L","score":8.7}],"sourceAffected":[],"observedAt":"2026-10-30T20:23:47.707Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T12:10:30.804Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T18:15:31.845Z","attemptedAt":"2026-10-30T18:15:31.845Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-10-30T18:15:31.578Z","attemptedAt":"2026-10-30T18:15:31.578Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T18:15:31.580Z","attemptedAt":"2026-10-30T18:15:31.580Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-10-30T18:15:31.345Z","attemptedAt":"2026-10-30T18:15:31.345Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-114183","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-114183","modified":"Oct 30, 2026, 4:21:02 PM","score":8.7,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L","checkedAt":"2026-10-30T18:15:31.580Z"},{"source":"NVD","id":"CVE-2026-119116","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119116","modified":"2026-10-30T17:17:16.343","score":8.7,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-30T18:15:31.845Z"},{"source":"NVD","id":"CVE-2026-119116","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119116","modified":"2026-10-30T17:17:16.343","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","checkedAt":"2026-10-30T18:15:31.845Z"}],"aiSummary":{"text":"A use-after-free issue in kmstool-enclave in AWS aws-nitro-enclaves-sdk-c before 0.4.6 may allow an application to corrupt heap memory inside a Nitro Enclave. The vulnerability is in the SetClient command handler. An application on the parent EC2 instance may be able to exploit this issue.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-31T05:16:02.693Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-119116"}]}}