CVE-2026-72055

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Source
https://cve.org/CVERecord?id=CVE-2026-72055
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72055.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72055
Downstream
Published
2026-08-15T05:52:11Z
Modified
2026-08-18T03:56:19Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink
Details

In the Linux kernel, the following vulnerability has been resolved:

net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink

vti6_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 vti6_changelink() on rtnl_dev_link_net_capable() at its top, before any attribute is parsed.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72055.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
61220ab349485d911083d0b7990ccd3db6c63297
Fixed
f5254e7766b4ac02b66b2ccef896cd278503cb11
Fixed
ef897249dc957089e6f7f11ceea699e093ad51bd
Fixed
f6e8b52a2cb3bbd72ddc2d44e474b907b9dcf5ba
Fixed
c64b9ae7eb97e81d54b792910a3aeafd92566c79
Fixed
b2b61c540571b3cc2f461e2a579ba2cc8c2a52cf
Fixed
0b2f9c908f930ec4be17d389723f9a202d6a883c
Fixed
f97e93ebf2f9b8ef3b87f7a9371255e84d151587
Fixed
e2ac3b242c37dff323a964962e43854f4b1a2b79

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72055.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.15.0
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72055.json"