CVE-2026-72054 (GCVE-0-2026-72054)
Vulnerability from cvelistv5
Published
2026-08-15 05:52
Modified
2026-10-19 21:19
Severity ?
8.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink vti_changelink() operates on at most two netns, dev_net(dev) and the tunnel link netns t->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in t->net can rewrite a tunnel that lives in t->net. Gate vti_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.
References
Impacted products
Vendor Product Version
Linux Linux Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
Version: 895de9a3488abcdd186680f0af3cce7f2d4d4a6e
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      "cveMetadata": "{\"cveId\": \"CVE-2026-72054\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2026-08-09T03:40:39.903Z\", \"datePublished\": \"2026-08-15T05:52:10.679Z\", \"dateUpdated\": \"2026-10-19T21:19:25.227Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.