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    2 vulnerabilities found for Kaltura HTML5 Video Player, html5 library by Kaltura

    CVE-2026-19912 (GCVE-0-2026-19912)

    Vulnerability from nvd – Published: 2026-08-25 16:20 – Updated: 2026-08-25 16:32
    VLAI
    Title
    CVE-2026-19912
    Summary
    The Kaltura HTML5 player (mwEmbed / html5lib) contains an unauthenticated remote code execution vulnerability caused by unsafe data deserialization and unsanitized filesystem path construction. mwEmbedLoader.php accepts a user‑controlled ServiceUrl, whose response is passed to unserialize(), and the resulting object’s fields are written to a cache path derived from attacker‑supplied uiconf_id without proper path validation. An attacker can write arbitrary files into web‑accessible locations and achieve code execution as the webserver user. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint.
    Severity
    No CVSS data available.
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kaltura Kaltura HTML5 Video Player, html5 library Affected: 0 , ≤ v2.103 (custom)
    Affected: 2.45
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Kaltura HTML5 Video Player, html5 library",
          "vendor": "Kaltura",
          "versions": [
            {
              "lessThanOrEqual": "v2.103",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "2.45"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Kaltura HTML5 player (mwEmbed / html5lib) contains an unauthenticated remote code execution vulnerability caused by unsafe data deserialization and unsanitized filesystem path construction. mwEmbedLoader.php accepts a user\u2011controlled ServiceUrl, whose response is passed to unserialize(), and the resulting object\u2019s fields are written to a cache path derived from attacker\u2011supplied uiconf_id without proper path validation. An attacker can write arbitrary files into web\u2011accessible locations and achieve code execution as the webserver user. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-20 Improper Input Validation",
              "lang": "en"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T16:32:58.890Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://kb.cert.org/vuls/id/308749"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-19912",
      "x_generator": {
        "engine": "VINCE 3.0.45",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-19912"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-19912",
    "datePublished": "2026-08-25T16:20:45.532Z",
    "dateReserved": "2026-08-14T20:07:50.299Z",
    "dateUpdated": "2026-08-25T16:32:58.890Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-19912 (GCVE-0-2026-19912)

    Vulnerability from cvelistv5 – Published: 2026-08-25 16:20 – Updated: 2026-08-25 16:32
    VLAI
    Title
    CVE-2026-19912
    Summary
    The Kaltura HTML5 player (mwEmbed / html5lib) contains an unauthenticated remote code execution vulnerability caused by unsafe data deserialization and unsanitized filesystem path construction. mwEmbedLoader.php accepts a user‑controlled ServiceUrl, whose response is passed to unserialize(), and the resulting object’s fields are written to a cache path derived from attacker‑supplied uiconf_id without proper path validation. An attacker can write arbitrary files into web‑accessible locations and achieve code execution as the webserver user. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint.
    Severity
    No CVSS data available.
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kaltura Kaltura HTML5 Video Player, html5 library Affected: 0 , ≤ v2.103 (custom)
    Affected: 2.45
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Kaltura HTML5 Video Player, html5 library",
          "vendor": "Kaltura",
          "versions": [
            {
              "lessThanOrEqual": "v2.103",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "2.45"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Kaltura HTML5 player (mwEmbed / html5lib) contains an unauthenticated remote code execution vulnerability caused by unsafe data deserialization and unsanitized filesystem path construction. mwEmbedLoader.php accepts a user\u2011controlled ServiceUrl, whose response is passed to unserialize(), and the resulting object\u2019s fields are written to a cache path derived from attacker\u2011supplied uiconf_id without proper path validation. An attacker can write arbitrary files into web\u2011accessible locations and achieve code execution as the webserver user. Affected versions include html5lib v2.45, v2.103 and earlier, and other v2.x releases exposing the vulnerable endpoint."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-20 Improper Input Validation",
              "lang": "en"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T16:32:58.890Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://kb.cert.org/vuls/id/308749"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "CVE-2026-19912",
      "x_generator": {
        "engine": "VINCE 3.0.45",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-19912"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-19912",
    "datePublished": "2026-08-25T16:20:45.532Z",
    "dateReserved": "2026-08-14T20:07:50.299Z",
    "dateUpdated": "2026-08-25T16:32:58.890Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}