{"id":"CVE-2026-40200","aliases":["ALPINE-CVE-2026-40200","BELL-CVE-2026-40200","DEBIAN-CVE-2026-40200","EUVD-2026-21496","GHSA-qrwv-475h-2439","OESA-2026-1927","OESA-2026-1928","OESA-2026-2087","OESA-2026-2088","OESA-2026-2178","ROOT-OS-ALPINE-315-CVE-2026-40200","ROOT-OS-ALPINE-317-CVE-2026-40200","ROOT-OS-ALPINE-318-CVE-2026-40200","UBUNTU-CVE-2026-40200"],"status":"published","title":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can...","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. 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tps://security-tracker.debian.org/tracker/CVE-2026-40200","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1927","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6042","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1928","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2087","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2088","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2178","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-40200","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-40200","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-40200","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T00:00:00Z","modified":"2026-04-14T14:32:24.901Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T13:43:11.445168Z"}],"euvd":[{"id":"EUVD-2026-21496","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T00:00:00Z","modified":"2026-04-14T14:32:24Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:24:26.535553Z"}],"ghsa":[{"id":"GHSA-qrwv-475h-2439","title":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can...","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T18:31:20Z","modified":"2026-04-10T18:31:28Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T15:07:24.880377Z"}],"nvd":[{"id":"CVE-2026-40200","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T17:17:14.107Z","modified":"2026-06-17T10:44:51.887Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-670"],"updated_at":"2026-11-02T14:12:14.37744Z"}],"osv":[{"id":"ALPINE-CVE-2026-40200","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T17:17:14.107Z","modified":"2026-10-01T02:17:49.275679234Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:50.764331Z"},{"id":"BELL-CVE-2026-40200","status":"published","published":"2026-04-13T08:11:05.71352Z","modified":"2026-04-25T07:22:32.49625Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:23.844435Z"},{"id":"DEBIAN-CVE-2026-40200","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T17:17:14.107Z","modified":"2026-10-01T03:03:11.948908759Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:54.892385Z"},{"id":"OESA-2026-1927","title":"musl security update","description":"musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conformance and safety.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).(CVE-2026-40200)\n\nA security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.(CVE-2026-6042)","status":"published","published":"2026-04-17T11:10:56Z","modified":"2026-08-18T01:19:55.329572196Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-1928","title":"musl security update","description":"musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conformance and safety.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).(CVE-2026-40200)\n\nA security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.(CVE-2026-6042)","status":"published","published":"2026-04-17T11:10:56Z","modified":"2026-08-18T01:19:39.222498882Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-2087","title":"musl security update","description":"musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conformance and safety.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).(CVE-2026-40200)\n\nA security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.(CVE-2026-6042)","status":"published","published":"2026-04-25T11:11:05Z","modified":"2026-08-18T01:19:56.398104392Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-2088","title":"musl security update","description":"musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conformance and safety.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).(CVE-2026-40200)\n\nA security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.(CVE-2026-6042)","status":"published","published":"2026-04-25T11:11:05Z","modified":"2026-08-18T01:19:56.394404495Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"OESA-2026-2178","title":"musl security update","description":"musl is an implementation of the C standard library built on top of the Linux system call API, including interfaces defined in the base language standard, POSIX, and widely agreed-upon extensions. It is lightweight, fast, simple, free, and strives to be correct in the sense of standards conformance and safety.\r\n\r\nSecurity Fix(es):\n\nAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).(CVE-2026-40200)\n\nA security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.(CVE-2026-6042)","status":"published","published":"2026-05-03T11:11:09Z","modified":"2026-08-18T01:19:56.532324076Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:46.087701Z"},{"id":"ROOT-OS-ALPINE-315-CVE-2026-40200","title":"CVE-2026-40200 in musl - Patched by Root","description":"Root has patched CVE-2026-40200 in the musl package for Root:Alpine:3.15. Multiple fixed versions available.","status":"published","published":"2026-09-29T09:32:47Z","modified":"2026-09-29T10:16:08.031975121Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:28.259095Z"},{"id":"ROOT-OS-ALPINE-317-CVE-2026-40200","title":"CVE-2026-40200 in musl - Patched by Root","description":"Root has patched CVE-2026-40200 in the musl package for Root:Alpine:3.17. Multiple fixed versions available.","status":"published","published":"2026-09-29T09:47:52Z","modified":"2026-09-29T10:15:12.197009696Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:28.259095Z"},{"id":"ROOT-OS-ALPINE-318-CVE-2026-40200","title":"CVE-2026-40200 in musl - Patched by Root","description":"Root has patched CVE-2026-40200 in the musl package for Root:Alpine:3.18. Multiple fixed versions available.","status":"published","published":"2026-09-29T10:24:20Z","modified":"2026-09-29T11:15:09.550330611Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:28.259095Z"},{"id":"UBUNTU-CVE-2026-40200","description":"An issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).","status":"published","published":"2026-04-10T17:17:00Z","modified":"2026-10-17T13:00:03.899872085Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:16.686388Z"}]}}