{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8889", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-05-18T20:43:53.154Z", "datePublished": "2026-06-03T18:15:15.450Z", "dateUpdated": "2026-06-03T18:15:15.450Z"}, "containers": {"cna": {"title": "CVE-2026-8889", "descriptions": [{"lang": "en", "value": "Version 3.0.7 of the Securly Chrome Extension uses deprecated SHA-1 hashing for IWF CSAM URL matching (25,020 hashes) and CIPA blocklist matching (12,352 hashes)."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Securly", "product": "Securly Chrome Extension", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "3.0.7", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-328"}]}], "references": [{"url": "https://kb.cert.org/vuls/id/595768"}], "x_generator": {"engine": "VINCE 3.0.42", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-8889"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-06-03T18:15:15.450Z"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:securly:securly:3.0.7:*:*:*:*:chrome:*:*", "matchCriteriaId": "CF6B029B-B152-4A34-AC5B-A417EB476C87", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Version 3.0.7 of the Securly Chrome Extension uses deprecated SHA-1 hashing for IWF CSAM URL matching (25,020 hashes) and CIPA blocklist matching (12,352 hashes)."}], "id": "CVE-2026-8889", "lastModified": "2026-06-05T20:46:28.040", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-03T19:16:39.950", "references": [{"source": "cret@cert.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://kb.cert.org/vuls/id/595768"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-407"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,3.0.7]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Securly Chrome Extension", "source": "cna", "vendor": "Securly"}, "product": "securly_chrome_extension", "vendor": "securly"}], "created": "2026-06-03T20:30:36.508640+00:00", "title": "Deprecated SHA\u20111 Hashing in Securly Chrome Extension Enabling Potential Blocklist Bypass", "updated": "2026-06-06T01:00:11.047942+00:00", "vendors": ["securly", "securly$PRODUCT$securly_chrome_extension"]}