CVE-2026-8889 (GCVE-0-2026-8889)

Vulnerability from cvelistv5 – Published: 2026-06-03 18:15 – Updated: 2026-06-03 18:15
VLAI
Title
CVE-2026-8889
Summary
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).
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Securly Securly Chrome Extension Affected: 0 , ≤ 3.0.7 (custom)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Securly Chrome Extension",
          "vendor": "Securly",
          "versions": [
            {
              "lessThanOrEqual": "3.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "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)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-328",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-03T18:15:15.450Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://kb.cert.org/vuls/id/595768"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-8889",
      "x_generator": {
        "engine": "VINCE 3.0.42",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-8889"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-8889",
    "datePublished": "2026-06-03T18:15:15.450Z",
    "dateReserved": "2026-05-18T20:43:53.154Z",
    "dateUpdated": "2026-06-03T18:15:15.450Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-8889\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-06-03T19:16:39.950\",\"lastModified\":\"2026-06-03T19:16:39.950\",\"vulnStatus\":\"Received\",\"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).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://kb.cert.org/vuls/id/595768\",\"source\":\"cret@cert.org\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.