{"id":"CVE-2019-11837","aliases":["EUVD-2019-3500","GHSA-rj39-h9jv-68r2"],"status":"published","title":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for...","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01379,"percentile":0.72288,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2019-05-09T13:07:21Z","modified":"2026-10-20T10:50:42Z","products":[{"vendor":"f5","product":"njs"}],"references":[{"url":"https://github.com/nginx/njs/issues/155","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11837"},{"url":"https://github.com/advisories/GHSA-rj39-h9jv-68r2"}],"sources":{"cve":[{"id":"CVE-2019-11837","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","status":"published","published":"2019-05-09T13:07:21Z","modified":"2024-08-04T23:03:32.887Z","updated_at":"2026-11-02T14:32:22.432545Z"}],"euvd":[{"id":"EUVD-2019-3500","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","status":"published","published":"2019-05-09T13:07:21Z","modified":"2024-08-04T23:03:32Z","updated_at":"2026-11-03T02:40:47.960625Z"}],"ghsa":[{"id":"GHSA-rj39-h9jv-68r2","title":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for...","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","status":"published","published":"2022-05-24T21:59:47Z","modified":"2023-01-30T05:04:07Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:46:58.413117Z"}],"nvd":[{"id":"CVE-2019-11837","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","status":"published","published":"2019-05-09T14:29:00.51Z","modified":"2026-06-17T02:13:43.02Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:05:13.880207Z"}],"osv":[{"id":"CVE-2019-11837","description":"njs through 0.3.1, used in NGINX, has a segmentation fault in String.prototype.toBytes for negative arguments, related to nxt_utf8_next in nxt/nxt_utf8.h and njs_string_offset in njs/njs_string.c.","status":"published","published":"2019-05-09T14:29:00.51Z","modified":"2026-10-20T10:50:42.206424805Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.718934Z"}]}}