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CVE-2026-43390

🗓️ 08 May 2026 14:21:35Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 8 Views

CVE-2026-43390: nstree tightens listing checks to hide other namespaces from privileged services.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
CNNVD
Linux kernel 安全漏洞
8 May 202600:00
cnnvd
Cvelist
CVE-2026-43390 nstree: tighten permission checks for listing
8 May 202614:21
cvelist
Debian CVE
CVE-2026-43390
8 May 202614:21
debiancve
EUVD
EUVD-2026-28696
8 May 202615:31
euvd
NVD
CVE-2026-43390
8 May 202615:16
nvd
OSV
BELL-CVE-2026-43390 CVE-2026-43390 does not affect BellSoft software
21 May 202606:10
osv
OSV
DEBIAN-CVE-2026-43390
8 May 202615:16
osv
OSV
UBUNTU-CVE-2026-43390
8 May 202615:16
osv
Positive Technologies
PT-2026-39051
8 May 202600:00
ptsecurity
RedhatCVE
CVE-2026-43390
8 May 202621:45
redhatcve
Rows per page
NVD
Vulners
CNA
Node
linuxlinux_kernelRange6.196.19.9
OROR
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/nstree.c"
    ],
    "versions": [
      {
        "version": "76b6f5dfb3fda76fce1f9990d6fa58adc711122b",
        "lessThan": "0abd81645fc95ec6a9d4e4813000f22c5efc0ff4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "76b6f5dfb3fda76fce1f9990d6fa58adc711122b",
        "lessThan": "8d76afe84fa2babf604b3c173730d4d2b067e361",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/nstree.c"
    ],
    "versions": [
      {
        "version": "6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.9",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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26 May 2026 15:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.5
EPSS0.00014
8