Vulnerability-Lookup

CVE-2026-1035 (GCVE-0-2026-1035)

Vulnerability from cvelistv5 – Published: 2026-01-21 05:52 – Updated: 2026-04-02 16:47

Title

Org.keycloak.protocol.oidc: keycloak refresh token reuse bypass via toctou race condition

Summary

A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak’s refresh token rotation hardening can be undermined.

Severity

3.1 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-21 14:37 UTC

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Assigner

redhat redhat root

References

4 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:6477	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:6478	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-1035	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2430314	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat build of Keycloak 26.4	Unaffected: 26.4.11-1 , < * (rpm) cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat	Red Hat build of Keycloak 26.4	Unaffected: 26.4-14 , < * (rpm) cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat	Red Hat build of Keycloak 26.4.11	cpe:/a:redhat:build_keycloak:26.4::el9
Red Hat	Red Hat JBoss Enterprise Application Platform 8	cpe:/a:redhat:jboss_enterprise_application_platform:8
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	cpe:/a:redhat:jbosseapxp
Red Hat	Red Hat Single Sign-On 7	cpe:/a:redhat:red_hat_single_sign_on:7

Date Public

2026-01-21 00:00

Credits

Red Hat would like to thank Mohamed Amine ait Ouchebou (mrecho) (Indiesecurity) for reporting this issue.

Show details on NVD website

JSON

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            {
              "other": {
                "content": {
                  "namespace": "https://access.redhat.com/security/updates/classification/",
                  "value": "Low"
                },
                "type": "Red Hat severity rating"
              }
            },
            {
              "cvssV3_1": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 3.1,
                "baseSeverity": "LOW",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
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          "problemTypes": [
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                  "cweId": "CWE-367",
                  "description": "Time-of-check Time-of-use (TOCTOU) Race Condition",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
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          ],
          "providerMetadata": {
            "dateUpdated": "2026-04-02T13:59:02.853Z",
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            },
            {
              "name": "RHSA-2026:6478",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:6478"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-1035"
            },
            {
              "name": "RHBZ#2430314",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430314"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-01-16T06:45:27.223Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-01-21T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Org.keycloak.protocol.oidc: keycloak refresh token reuse bypass via toctou race condition",
          "workarounds": [
            {
              "lang": "en",
              "value": "To mitigate this issue, configure the `refreshTokenMaxReuse` policy in Keycloak to a value greater than zero. This prevents the race condition by allowing a limited number of reuses for refresh tokens, thereby maintaining the integrity of the Refresh Token Rotation hardening measure. Consult Keycloak documentation for specific configuration instructions. Changes to Keycloak configuration typically require a service restart or redeployment to take effect."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-1035",
        "datePublished": "2026-01-21T05:52:22.495Z",
        "dateReserved": "2026-01-16T07:03:59.680Z",
        "dateUpdated": "2026-04-02T13:59:02.853Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-1035

Vulnerability from fkie_nvd - Published: 2026-01-21 06:15 - Updated: 2026-06-17 10:14

Severity

3.1 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:6477
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:6478
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-1035
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2430314

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "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": "26.4.11-1",
              "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": "26.4-14",
              "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": "26.4-14",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:build_keycloak:26.4::el9"
          ],
          "defaultStatus": "unaffected",
          "packageName": "rhbk/keycloak-rhel9",
          "product": "Red Hat build of Keycloak 26.4.11",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
          "cpes": [
            "cpe:/a:redhat:jboss_enterprise_application_platform:8"
          ],
          "defaultStatus": "unaffected",
          "packageName": "keycloak-services",
          "product": "Red Hat JBoss Enterprise Application Platform 8",
          "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": "unaffected",
          "packageName": "keycloak-services",
          "product": "Red Hat Single Sign-On 7",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak\u2019s refresh token rotation hardening can be undermined."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 una falla en el servidor Keycloak durante el procesamiento de tokens de actualizaci\u00f3n, espec\u00edficamente en la clase TokenManager responsable de aplicar las pol\u00edticas de reutilizaci\u00f3n de tokens de actualizaci\u00f3n. Cuando la rotaci\u00f3n estricta de tokens de actualizaci\u00f3n est\u00e1 habilitada, la validaci\u00f3n y actualizaci\u00f3n del uso del token de actualizaci\u00f3n no se realizan de forma at\u00f3mica. Esto permite que las solicitudes de actualizaci\u00f3n concurrentes eludan la aplicaci\u00f3n del uso \u00fanico y emitan m\u00faltiples tokens de acceso desde el mismo token de actualizaci\u00f3n. Como resultado, el endurecimiento de la rotaci\u00f3n de tokens de actualizaci\u00f3n de Keycloak puede verse socavado."
    }
  ],
  "id": "CVE-2026-1035",
  "lastModified": "2026-06-17T10:14:53.580",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 3.1,
          "baseSeverity": "LOW",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-1035",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-01-21T14:37:07.867592Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-01-21T06:15:46.937",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:6477"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:6478"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-1035"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430314"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-M2W5-7XHV-W6FH

Vulnerability from github – Published: 2026-01-21 06:31 – Updated: 2026-04-02 15:31

Summary

Keycloak does not validate and update refresh token usage atomically

Details

Severity

3.1 (Low)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-services"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "26.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-1035"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-21T22:29:46Z",
    "nvd_published_at": "2026-01-21T06:15:46Z",
    "severity": "LOW"
  },
  "details": "A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak\u2019s refresh token rotation hardening can be undermined.",
  "id": "GHSA-m2w5-7xhv-w6fh",
  "modified": "2026-04-02T15:31:34Z",
  "published": "2026-01-21T06:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1035"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/45647"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6477"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6478"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-1035"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430314"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak does not validate and update refresh token usage atomically"
}

JVNDB-2026-026852

Vulnerability from jvndb - Published: 2026-08-05 01:11 - Updated:2026-08-05 01:11

Summary

Multiple Vulnerabilities in Hitachi Ops Center Common Services

Details

Multiple vulnerabilities exist in Hitachi Ops Center Common Services. CVE-2025-10939, CVE-2025-11537, CVE-2025-11538, CVE-2025-12110, CVE-2025-13467, CVE-2025-13881, CVE-2025-14082, CVE-2025-14083, CVE-2025-14777, CVE-2025-66560, CVE-2026-0707, CVE-2026-0871, CVE-2026-0976, CVE-2026-1035, CVE-2026-1190, CVE-2026-2092, CVE-2026-2575, CVE-2026-2673, CVE-2026-3009, CVE-2026-3121, CVE-2026-3429, CVE-2026-3872, CVE-2026-3911, CVE-2026-4282, CVE-2026-4325, CVE-2026-4634, CVE-2026-22745, CVE-2026-22748, CVE-2026-25854, CVE-2026-40972, CVE-2026-40975

References

Type

URL

	CVE	https://www.cve.org/CVERecord?id=CVE-2025-10939
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-11537
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-11538
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-12110
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-13467
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-13881
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-14082
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-14083
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-14777
	CVE	https://www.cve.org/CVERecord?id=CVE-2025-66560
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-0707
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-0871
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-0976
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-1035
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-1190
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-2092
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-22745
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-22748
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-2575
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-25854
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-2673
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-3009
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-3121
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-3429
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-3872
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-3911
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-40972
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-40975
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-4282
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-4325
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-4634

Impacted products

Vendor

Product

Hitachi, Ltd

Hitachi Ops Center Common Services

Show details on JVN DB website

JSON

To clipboard

{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-026852.html",
  "dc:date": "2026-08-05T10:11+09:00",
  "dcterms:issued": "2026-08-05T10:11+09:00",
  "dcterms:modified": "2026-08-05T10:11+09:00",
  "description": "Multiple vulnerabilities exist in Hitachi Ops Center Common Services.\r\n\r\nCVE-2025-10939, CVE-2025-11537, CVE-2025-11538, CVE-2025-12110, CVE-2025-13467, CVE-2025-13881, CVE-2025-14082, CVE-2025-14083, CVE-2025-14777, CVE-2025-66560, CVE-2026-0707, CVE-2026-0871, CVE-2026-0976, CVE-2026-1035, CVE-2026-1190, CVE-2026-2092, CVE-2026-2575, CVE-2026-2673, CVE-2026-3009, CVE-2026-3121, CVE-2026-3429, CVE-2026-3872, CVE-2026-3911, CVE-2026-4282, CVE-2026-4325, CVE-2026-4634, CVE-2026-22745, CVE-2026-22748, CVE-2026-25854, CVE-2026-40972, CVE-2026-40975",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-026852.html",
  "sec:cpe": {
    "#text": "cpe:/a:hitachi:ops_center_common_services",
    "@product": "Hitachi Ops Center Common Services",
    "@vendor": "Hitachi, Ltd",
    "@version": "2.2"
  },
  "sec:identifier": "JVNDB-2026-026852",
  "sec:references": [
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-10939",
      "@id": "CVE-2025-10939",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-11537",
      "@id": "CVE-2025-11537",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-11538",
      "@id": "CVE-2025-11538",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-12110",
      "@id": "CVE-2025-12110",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-13467",
      "@id": "CVE-2025-13467",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-13881",
      "@id": "CVE-2025-13881",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-14082",
      "@id": "CVE-2025-14082",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-14083",
      "@id": "CVE-2025-14083",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-14777",
      "@id": "CVE-2025-14777",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2025-66560",
      "@id": "CVE-2025-66560",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-0707",
      "@id": "CVE-2026-0707",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-0871",
      "@id": "CVE-2026-0871",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-0976",
      "@id": "CVE-2026-0976",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-1035",
      "@id": "CVE-2026-1035",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-1190",
      "@id": "CVE-2026-1190",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-2092",
      "@id": "CVE-2026-2092",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-22745",
      "@id": "CVE-2026-22745",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-22748",
      "@id": "CVE-2026-22748",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-2575",
      "@id": "CVE-2026-2575",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-25854",
      "@id": "CVE-2026-25854",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-2673",
      "@id": "CVE-2026-2673",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-3009",
      "@id": "CVE-2026-3009",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-3121",
      "@id": "CVE-2026-3121",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-3429",
      "@id": "CVE-2026-3429",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-3872",
      "@id": "CVE-2026-3872",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-3911",
      "@id": "CVE-2026-3911",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-40972",
      "@id": "CVE-2026-40972",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-40975",
      "@id": "CVE-2026-40975",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-4282",
      "@id": "CVE-2026-4282",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-4325",
      "@id": "CVE-2026-4325",
      "@source": "CVE"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-4634",
      "@id": "CVE-2026-4634",
      "@source": "CVE"
    }
  ],
  "title": "Multiple Vulnerabilities in Hitachi Ops Center Common Services"
}

RHSA-2026:6477

Vulnerability from csaf_redhat - Published: 2026-04-02 13:54 - Updated: 2026-08-31 20:10

Summary

Red Hat Security Advisory: Red Hat build of Keycloak 26.4.11 Update

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2026-1035.

CVE-2026-1035

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 1 product

https://access.redhat.com/errata/RHSA-2026:6477

Open the full advisory

RHSA-2026:6478

Vulnerability from csaf_redhat - Published: 2026-04-02 13:58 - Updated: 2026-08-31 01:59

Summary

Red Hat Security Advisory: Red Hat build of Keycloak 26.4.11 Images Update

Severity

Important

Scope

15 vulnerabilities in this advisory, including CVE-2026-1035.

CVE-2026-1035

3.1 (Low)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Fixed: 9 products

https://access.redhat.com/errata/RHSA-2026:6478

Open the full advisory

UBUNTU-CVE-2026-1035 (CVE-2026-1035)

Vulnerability from osv_ubuntu – Published: 2026-01-21 06:15 – Updated: 2026-01-21 06:15 – Source website

Details

Severity

3.1 (Low)


                    
                      CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-1035	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-1035	REPORT
	https://access.redhat.com/security/cve/CVE-2026-1035	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2430314	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-keycloak",
            "binary_version": "3.9.0+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "python-keycloak",
        "purl": "pkg:deb/ubuntu/python-keycloak@3.9.0+dfsg-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3.0+dfsg-2",
        "3.9.0+dfsg-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python3-keycloak",
            "binary_version": "5.3.1+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "python-keycloak",
        "purl": "pkg:deb/ubuntu/python-keycloak@5.3.1+dfsg-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.1+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak\u2019s refresh token rotation hardening can be undermined.",
  "id": "UBUNTU-CVE-2026-1035",
  "modified": "2026-01-21T06:15:00Z",
  "published": "2026-01-21T06:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-1035"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-1035"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-1035"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2430314"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-1035"
  ]
}

WID-SEC-W-2026-0197

Vulnerability from csaf_certbund - Published: 2026-01-21 23:00 - Updated: 2026-04-06 22:00

Summary

Keycloak: Mehrere Schwachstellen

Severity

Mittel

Scope

3 vulnerabilities in this advisory, including CVE-2026-1035.

CVE-2026-1035

Known affected: 4 products Last affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-1035 (GCVE-0-2026-1035)

FKIE_CVE-2026-1035

GHSA-M2W5-7XHV-W6FH

JVNDB-2026-026852

RHSA-2026:6477

RHSA-2026:6478

UBUNTU-CVE-2026-1035 (CVE-2026-1035)

WID-SEC-W-2026-0197

Tags

Sightings

Nomenclature

Related by attack behaviour