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CVE-2026-77021 Missing decompression size limit in agent receiver allows memory exhaustion via push agent data

🗓️ 21 Sep 2026 10:57:37Reported by CheckmkType 
cvelist
 cvelist
🔗 www.cve.org👁 34 Views

Memory exhaustion in Checkmk agent receiver via push-mode zlib decompression.

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-77021
21 Sep 202610:57
cve
euvd
EUVD
EUVD-2026-83883
21 Sep 202610:57
euvd
nvd
NVD
CVE-2026-77021
21 Sep 202611:17
nvd
vulnrichment
Vulnrichment
CVE-2026-77021 Missing decompression size limit in agent receiver allows memory exhaustion via push agent data
21 Sep 202610:57
vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "Checkmk",
    "vendor": "Checkmk GmbH",
    "versions": [
      {
        "lessThan": "2.5.0p14",
        "status": "affected",
        "version": "2.5.0",
        "versionType": "semver"
      },
      {
        "lessThan": "2.4.0p37",
        "status": "affected",
        "version": "2.4.0",
        "versionType": "semver"
      },
      {
        "lessThan": "2.3.0p51",
        "status": "affected",
        "version": "2.3.0",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "2.2.0",
        "versionType": "semver"
      }
    ]
  }
]

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