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CVE-2026-21577

🗓️ 21 Jul 2026 17:00:00Reported by atlassianType 
cve
 cve
🔗 web.nvd.nist.gov👁 70 Views

CVE-2026-21577 in Confluence Data Center enables authenticated Denial of Service; upgrade to 9.2.17 or 10.2.7.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
nessus
Tenable Nessus
Atlassian Confluence 9.0.1 / 9.1.x / 9.2.x < 9.2.17 / 9.3.1 / 9.4.x / 9.5.1 / 10.0.2 / 10.1.x / 10.2.x < 10.2.7 (CONFSERVER-104334)
31 Jul 202600:00
nessus
atlassian
Atlassian
DoS (Denial of Service) in Confluence Data Center
8 Jul 202601:50
atlassian
cvelist
Cvelist
CVE-2026-21577
21 Jul 202617:00
cvelist
euvd
EUVD
EUVD-2026-46327
21 Jul 202617:00
euvd
nvd
NVD
CVE-2026-21577
21 Jul 202618:16
nvd
ptsecurity
Positive Technologies
PT-2026-61999
21 Jul 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-21577
21 Jul 202617:00
vulnrichment
NVD
CNA
[
  {
    "vendor": "Atlassian",
    "product": "Confluence Data Center",
    "versions": [
      {
        "version": "10.2.0 to 10.2.6",
        "status": "affected"
      },
      {
        "version": "10.1.0 to 10.1.2",
        "status": "affected"
      },
      {
        "version": "10.0.2 to 10.0.3",
        "status": "affected"
      },
      {
        "version": "9.5.1 to 9.5.4",
        "status": "affected"
      },
      {
        "version": "9.4.0 to 9.4.1",
        "status": "affected"
      },
      {
        "version": "9.3.1 to 9.3.2",
        "status": "affected"
      },
      {
        "version": "9.2.0 to 9.2.15",
        "status": "affected"
      },
      {
        "version": "9.1.0 to 9.1.1",
        "status": "affected"
      },
      {
        "version": "9.0.1 to 9.0.3",
        "status": "affected"
      },
      {
        "version": "10.2.7 to 10.2.14",
        "status": "unaffected"
      },
      {
        "version": "9.2.17 to 9.2.22",
        "status": "unaffected"
      }
    ]
  }
]

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10 Aug 2026 20:56Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.16.5
CVSS 47.1
EPSS0.00235
SSVC
70