FKIE_CVE-2026-21569

Vulnerability from fkie_nvd - Published: 2026-01-28 01:16 - Updated: 2026-01-28 15:16
Severity ?
7.9 (High) - CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H
Summary
This High severity XXE (XML External Entity Injection) vulnerability was introduced in version 7.1.0 of Crowd Data Center and Server. This XXE (XML External Entity Injection) vulnerability, with a CVSS Score of 7.9, allows an authenticated attacker to access local and remote content which has high impact to confidentiality, low impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Crowd Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: * Crowd Data Center and Server 7.1: Upgrade to a release greater than or equal to 7.1.3 See the release notes (https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html). You can download the latest version of Crowd Data Center and Server from the download center (https://www.atlassian.com/software/crowd/download-archive). This vulnerability was reported via our Atlassian (Internal) program.
References
security@atlassian.comhttps://confluence.atlassian.com/pages/viewpage.action?pageId=1712324819
security@atlassian.comhttps://jira.atlassian.com/browse/CWD-6453
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This High severity XXE (XML External Entity Injection) vulnerability was introduced in version 7.1.0 of Crowd Data Center and Server. \n\t\n\tThis XXE (XML External Entity Injection) vulnerability, with a CVSS Score of 7.9, allows an authenticated attacker to access local and remote content which has high impact to confidentiality, low impact to integrity, high impact to availability, and requires no user interaction. \n\t\n\tAtlassian recommends that Crowd Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:\n\t\t\n\t\t* Crowd Data Center and Server 7.1: Upgrade to a release greater than or equal to 7.1.3\n\t\t\n\t\t\n\t\n\tSee the release notes (https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html). You can download the latest version of Crowd Data Center and Server from the download center (https://www.atlassian.com/software/crowd/download-archive). \n\t\n\tThis vulnerability was reported via our Atlassian (Internal) program."
    }
  ],
  "id": "CVE-2026-21569",
  "lastModified": "2026-01-28T15:16:17.670",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.9,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 6.0,
        "source": "security@atlassian.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-28T01:16:14.187",
  "references": [
    {
      "source": "security@atlassian.com",
      "url": "https://confluence.atlassian.com/pages/viewpage.action?pageId=1712324819"
    },
    {
      "source": "security@atlassian.com",
      "url": "https://jira.atlassian.com/browse/CWD-6453"
    }
  ],
  "sourceIdentifier": "security@atlassian.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • 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.
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  • 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.