{"id":"CVE-2026-8888","aliases":["EUVD-2026-34168","GHSA-7w3m-2pw9-mg8x"],"status":"published","title":"CVE-2026-8888","description":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00432,"percentile":0.37845,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-1333","CWE-917"],"published":"2026-06-03T18:16:25Z","modified":"2026-07-22T20:10:00Z","exploits":[{"source":"pocgithub","id":"George0Papasotiriou/CVE-2026-8888-Printer-Firmware-Unsigned-Update-via-HTTP","title":"George0Papasotiriou/CVE-2026-8888-Printer-Firmware-Unsigned-Update-via-HTTP","date":"2026-08-03","url":"https://github.com/George0Papasotiriou/CVE-2026-8888-Printer-Firmware-Unsigned-Update-via-HTTP"}],"products":[{"vendor":"securly","product":"securly"},{"vendor":"securly","product":"securly chrome extension"}],"references":[{"url":"https://kb.cert.org/vuls/id/595768","tags":["Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8888"},{"url":"https://github.com/advisories/GHSA-7w3m-2pw9-mg8x"}],"sources":{"cve":[{"id":"CVE-2026-8888","title":"CVE-2026-8888","description":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.","status":"published","published":"2026-06-03T18:16:25.264Z","modified":"2026-06-04T19:48:31.51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T13:48:13.398044Z"}],"euvd":[{"id":"EUVD-2026-34168","description":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.","status":"published","published":"2026-06-03T18:16:25Z","modified":"2026-06-04T19:48:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:52.744481Z"}],"ghsa":[{"id":"GHSA-7w3m-2pw9-mg8x","title":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server...","description":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.","status":"published","published":"2026-06-03T21:30:31Z","modified":"2026-06-05T21:33:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-917","CWE-1333"],"updated_at":"2026-11-02T15:08:36.196175Z"}],"nvd":[{"id":"CVE-2026-8888","description":"Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.","status":"published","published":"2026-06-03T19:16:39.807Z","modified":"2026-07-22T20:10:00.127Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-917","CWE-1333"],"updated_at":"2026-11-02T14:12:22.022466Z"}]}}