{"id":"CVE-2026-8888","state":"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.","publishedAt":"2026-06-03T18:16:25.264Z","updatedAt":"2026-06-04T19:48:31.510Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["Securly Securly Chrome Extension"],"affected":[{"vendor":"Securly","product":"Securly Chrome Extension","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.7","versionType":"custom"}]}],"references":["https://kb.cert.org/vuls/id/595768"],"weaknesses":["CWE-1333"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8888.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8888","state":"PUBLISHED","datePublished":"2026-06-03T18:16:25.264Z","dateUpdated":"2026-06-04T19:48:31.510Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-05-18T20:40:05.298Z"},"containers":{"cna":{"title":"CVE-2026-8888","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Securly","product":"Securly Chrome Extension","versions":[{"version":"0","status":"affected","lessThanOrEqual":"3.0.7","versionType":"custom"}]}],"references":[{"url":"https://kb.cert.org/vuls/id/595768"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-1333"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-06-03T18:18:13.249Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.42","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-8888"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-06-04T19:48:22.314942Z","id":"CVE-2026-8888","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","type":"CWE","lang":"en","description":"CWE-1333 Inefficient Regular Expression Complexity"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-04T19:48:31.510Z"}}]}}}