cve-2026-18963

CRITICAL CVSS 9.1 nvd
Description

A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.

Timeline
Published
2026-08-18
Last Modified
2026-10-23
CVSS Details
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Affected Products

No product information available.

Weaknesses (CWE)
CVSS metrics
Version Base Severity Vector Exploitability Impact Source
3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N 3.9 5.2 secalert@redhat.com
NVD metadata
NVD status
Awaiting Analysis
Source identifier
secalert@redhat.com
References
Linked Vulnerabilities

No linked vulnerabilities found.

{
  "cvss": 9.1,
  "datePublished": "2026-08-18T17:16:57.083",
  "dateUpdated": "2026-10-23T17:17:21.527",
  "description": "A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials.",
  "id": "CVE-2026-18963",
  "raw": {
    "affected": [
      {
        "affectedData": [
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.4::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.4",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.4.15-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.4::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.4",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.4-23",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.4::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.4",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.4-23",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.4"
            ],
            "defaultStatus": "unaffected",
            "packageName": "keycloak-services",
            "product": "Red Hat build of Keycloak 26.4.15",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.4"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
            "product": "Red Hat build of Keycloak 26.4.15",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-operator-bundle",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6.6-1",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://catalog.redhat.com/software/containers/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6::el9"
            ],
            "defaultStatus": "affected",
            "packageName": "rhbk/keycloak-rhel9-operator",
            "product": "Red Hat build of Keycloak 26.6",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "26.6-12",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "keycloak-services",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-keycloak-rhel9/rhbk-keycloak-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:build_keycloak:26.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "rhbk-openshift-rhel9/rhbk-openshift-rhel9",
            "product": "Red Hat build of Keycloak 26.6.6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
            "cpes": [
              "cpe:/a:redhat:jbosseapxp"
            ],
            "defaultStatus": "unaffected",
            "packageName": "keycloak-services",
            "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:red_hat_single_sign_on:7"
            ],
            "defaultStatus": "affected",
            "packageName": "keycloak-services",
            "product": "Red Hat Single Sign-On 7",
            "vendor": "Red Hat"
          }
        ],
        "source": "secalert@redhat.com"
      },
      {
        "affectedData": [
          {
            "defaultStatus": "unknown",
            "product": "Industrial Edge Management Cloud",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "Industrial Edge Management Pro V1",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V1.15.20",
                "status": "affected",
                "version": "V1.14.9",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "Industrial Edge Management Pro V2",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V2.2.2",
                "status": "affected",
                "version": "V2.2.0",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "Industrial Edge Management Virtual",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V2.9.1",
                "status": "affected",
                "version": "V2.6.0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials."
      }
    ],
    "id": "CVE-2026-18963",
    "lastModified": "2026-10-23T17:17:21.527",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.2,
          "source": "secalert@redhat.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-18963",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-08-20T13:53:38.227092Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-08-18T17:16:57.083",
    "references": [
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56519"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56520"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56523"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/errata/RHSA-2026:56524"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://access.redhat.com/security/cve/CVE-2026-18963"
      },
      {
        "source": "secalert@redhat.com",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511595"
      },
      {
        "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-503852.html"
      }
    ],
    "sourceIdentifier": "secalert@redhat.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-640"
          }
        ],
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  },
  "severity": "CRITICAL",
  "source": "nvd",
  "title": "A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for ident..."
}
Enrichment data
Nuclei templates
Aggregated bundle (all enrichments)
View JSON API Download JSON