CVE-2026-19506 (GCVE-0-2026-19506)

Vulnerability from cvelistv5 – Published: 2026-08-19 19:27 – Updated: 2026-08-19 19:27
VLAI
Title
RDK-B WebUI race condition vulnerability
Summary
Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state.
Severity
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
RDK RDK-B WebUI Affected: rdkb-2025q4-kirkstone
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "RDK-B WebUI",
          "vendor": "RDK",
          "versions": [
            {
              "status": "affected",
              "version": "rdkb-2025q4-kirkstone"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T19:27:55.948Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/"
        },
        {
          "url": "https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "RDK-B WebUI race condition vulnerability",
      "x_generator": {
        "engine": "VINCE 3.0.44",
        "env": "prod",
        "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-19506"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2026-19506",
    "datePublished": "2026-08-19T19:27:55.948Z",
    "dateReserved": "2026-08-10T19:13:43.963Z",
    "dateUpdated": "2026-08-19T19:27:55.948Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-19506",
      "date": "2026-08-24",
      "epss": "0.00221",
      "percentile": "0.12437"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-19506\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-08-19T20:17:14.293\",\"lastModified\":\"2026-08-19T20:17:14.293\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Race condition in `check.jst` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote attacker to gain unauthorized access via concurrent authentication requests that exploit shared authentication state.\"}],\"affected\":[{\"source\":\"cret@cert.org\",\"affectedData\":[{\"vendor\":\"RDK\",\"product\":\"RDK-B WebUI\",\"versions\":[{\"version\":\"rdkb-2025q4-kirkstone\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/\",\"source\":\"cret@cert.org\"},{\"url\":\"https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/\",\"source\":\"cret@cert.org\"}]}}"
  }
}



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