{"id":"CVE-2026-88358","aliases":["BELL-CVE-2026-88358","DEBIAN-CVE-2026-88358","EUVD-2026-86284","GHSA-w8jv-57mm-8396","UBUNTU-CVE-2026-88358"],"status":"published","title":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser:...","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00394,"percentile":0.34044,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2026-09-24T00:00:00Z","modified":"2026-10-28T11:00:50Z","fixes":[{"ecosystem":"Alpaquita:25","package":"simdjson","fixed_in":["5.0.2-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"simdjson","fixed_in":["5.0.1-r0"],"sources":["osv"]},{"ecosystem":"BellSoft Hardened Containers:25","package":"simdjson","fixed_in":["5.0.2-r0"],"sources":["osv"]},{"ecosystem":"BellSoft Hardened Containers:stream","package":"simdjson","fixed_in":["5.0.1-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpaquita:25","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.0-r0"},{"fixed":"5.0.2-r0"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0-r0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"BellSoft Hardened Containers:25","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.0-r0"},{"fixed":"5.0.2-r0"}]}]},{"source":"osv","ecosystem":"BellSoft Hardened Containers:stream","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.6.0-r0"},{"fixed":"5.0.1-r0"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.12.3-1","3.13.0-1","3.13.0-1.1","4.2.3-1","4.2.4-1","4.3.1+really4.2.4-1","4.3.1+really4.3.1-1","4.3.1-1","4.3.1-2","4.3.1-4","4.3.1-5","4.5.0-1","4.6.0-1","4.6.11-1","4.6.3-1","4.6.4-1","4.6.5-1","4.6.6-1","4.6.7-1","4.6.8-1"]},{"source":"osv","ecosystem":"Debian:14","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.12.3-1","3.13.0-1","3.13.0-1.1","4.2.3-1","4.2.4-1","4.3.1+really4.2.4-1","4.3.1+really4.3.1-1","4.3.1-1","4.3.1-2","4.3.1-4","4.3.1-5","4.5.0-1","4.6.0-1","4.6.11-1","4.6.3-1","4.6.4-1","4.6.5-1","4.6.6-1","4.6.7-1","4.6.8-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.1-1","0.2.1-1build1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.1-1","1.0.2-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.1-1","3.2.3-1","3.6.3-1","3.6.4-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.4-1","4.6.4-1","4.6.4-1build1","4.6.4-1build2","4.6.6-1","4.6.7-1","4.6.8-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"simdjson","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.12.3-1","3.13.0-1.1","4.2.4-1"]}],"references":[{"url":"https://github.com/simdjson/simdjson/issues/2815","tags":["exploit","report"]},{"url":"https://github.com/simdjson/simdjson/pull/2817","tags":["fix"]},{"url":"https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577","tags":["fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88358","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-w8jv-57mm-8396"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-88358","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88358.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-88358","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-88358","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-88358","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-88358","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T00:00:00Z","modified":"2026-09-29T02:26:36.211Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"adp"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T13:42:04.39372Z"}],"euvd":[{"id":"EUVD-2026-86284","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T00:00:00Z","modified":"2026-09-29T02:26:36Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T17:27:52.759804Z"}],"ghsa":[{"id":"GHSA-w8jv-57mm-8396","title":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser:...","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T18:31:19Z","modified":"2026-09-29T03:30:39Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:12:32.639211Z"}],"nvd":[{"id":"CVE-2026-88358","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T16:17:13.09Z","modified":"2026-09-29T03:17:19.61Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:51.036099Z"}],"osv":[{"id":"BELL-CVE-2026-88358","status":"published","published":"2026-09-26T06:06:19.831976Z","modified":"2026-10-16T07:15:05.385455968Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:28:26.630331Z"},{"id":"CVE-2026-88358","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T00:00:00Z","modified":"2026-10-28T11:00:50.489968125Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:19.210277Z"},{"id":"DEBIAN-CVE-2026-88358","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T16:17:13.09Z","modified":"2026-10-04T00:00:14.050044171Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:46:05.506112Z"},{"id":"UBUNTU-CVE-2026-88358","description":"simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.","status":"published","published":"2026-09-24T16:17:00Z","modified":"2026-10-17T13:01:15.527184143Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T16:57:24.828975Z"}]}}