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CVE-2026-3114 Zip Bomb Denial of Service via Unrestricted Archive Decompression

🗓️ 26 Mar 2026 16:21:19Reported by MattermostType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

Mattermost fails to validate decompressed sizes during extraction, enabling authenticated uploads to trigger zip bomb denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-3114
26 Mar 202616:21
attackerkb
Circl
CVE-2026-3114
27 Mar 202603:00
circl
CNNVD
Mattermost 安全漏洞
26 Mar 202600:00
cnnvd
CVE
CVE-2026-3114
26 Mar 202616:21
cve
EUVD
EUVD-2026-16242
26 Mar 202618:31
euvd
Github Security Blog
Mattermost doesn't validate decompressed archive entry sizes during file extraction
26 Mar 202618:31
github
NVD
CVE-2026-3114
26 Mar 202617:16
nvd
OSV
GHSA-VHGH-G7X8-4RX8 Mattermost doesn't validate decompressed archive entry sizes during file extraction
26 Mar 202618:31
osv
Positive Technologies
PT-2026-28423
26 Mar 202600:00
ptsecurity
RedhatCVE
CVE-2026-3114
26 Mar 202619:27
redhatcve
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "11.4.0",
        "status": "affected",
        "version": "11.4.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.3.1",
        "status": "affected",
        "version": "11.3.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "11.2.3",
        "status": "affected",
        "version": "11.2.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "10.11.11",
        "status": "affected",
        "version": "10.11.0",
        "versionType": "semver"
      },
      {
        "version": "11.5.0",
        "status": "unaffected"
      },
      {
        "version": "11.4.1",
        "status": "unaffected"
      },
      {
        "version": "11.3.2",
        "status": "unaffected"
      },
      {
        "version": "11.2.4",
        "status": "unaffected"
      },
      {
        "version": "10.11.12",
        "status": "unaffected"
      }
    ]
  }
]

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