{"id":"CVE-2026-4295","aliases":["EUVD-2026-12638","GHSA-qpcc-2ccj-gp68"],"status":"published","title":"Arbitrary code execution via crafted project files in Kiro IDE","description":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.\n\n\n\nTo remediate this issue, users should upgrade to version 0.8.0 or higher.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0022,"percentile":0.1258,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-829"],"published":"2026-03-17T19:11:58Z","modified":"2026-06-17T10:56:22Z","products":[{"vendor":"aws","product":"kiro ide"}],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-009-AWS/","tags":["vendor-advisory"]},{"url":"https://kiro.dev/changelog/ide/0-8/","tags":["release-notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4295"},{"url":"https://aws.amazon.com/security/security-bulletins/2026-009-AWS"},{"url":"https://kiro.dev/changelog/ide/0-8"},{"url":"https://github.com/advisories/GHSA-qpcc-2ccj-gp68"}],"sources":{"cve":[{"id":"CVE-2026-4295","title":"Arbitrary code execution via crafted project files in Kiro IDE","description":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.\n\n\n\nTo remediate this issue, users should upgrade to version 0.8.0 or higher.","status":"published","published":"2026-03-17T19:11:58.702Z","modified":"2026-03-18T14:07:58.063Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-829"],"updated_at":"2026-11-02T14:19:59.761005Z"}],"euvd":[{"id":"EUVD-2026-12638","description":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.\n\n\n\nTo remediate this issue, users should upgrade to version 0.8.0 or higher.","status":"published","published":"2026-03-17T19:11:58Z","modified":"2026-03-18T14:07:58Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:25:33.306068Z"}],"ghsa":[{"id":"GHSA-qpcc-2ccj-gp68","title":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms...","description":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.\n\n\n\nTo remediate this issue, users should upgrade to version 0.8.0 or higher.","status":"published","published":"2026-03-17T21:31:46Z","modified":"2026-03-17T21:31:53Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-829"],"updated_at":"2026-11-02T15:06:40.510126Z"}],"nvd":[{"id":"CVE-2026-4295","description":"Improper trust boundary enforcement in Kiro IDE before version 0.8.0 on all supported platforms might allow a remote unauthenticated threat actor to execute arbitrary code via maliciously crafted project directory files that bypass workspace trust protections when a local user opens the directory.\n\n\n\nTo remediate this issue, users should upgrade to version 0.8.0 or higher.","status":"published","published":"2026-03-17T20:16:14.84Z","modified":"2026-06-17T10:56:22.723Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-829"],"updated_at":"2026-11-02T14:12:09.735529Z"}]}}