In the Linux kernel, the following vulnerability has been resolved: xfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for …
CVE-2026-72136 · published 15 Aug 2026
How serious is it
- Severity: high, CVSS score 8.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-72136?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 4.19
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
In the Linux kernel, the following vulnerability has been resolved:
xfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for changelink
xfrmi_changelink() operates on at most two netns, dev_net(dev) and the
interface link netns xi->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 xi->net can rewrite an interface that
lives in xi->net.
Gate xfrmi_changelink() on rtnl_dev_link_net_capable() at its top,
before any attribute is parsed.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/04c1aa57d08471b1953bf27c84ac9b3d78d71831
- git.kernel.org/stable/c/095515d89b19b6cc19dfcdc846f97403ed1ebce3
- git.kernel.org/stable/c/37b61946d278c7deb0d40ba8f2b6fc0478d61dab
- git.kernel.org/stable/c/3ba2b2ef7d6a63b190f15cfc2b4ba0fba59928ea
- git.kernel.org/stable/c/80ec68bba11f7f387c0e4099c2d7b2c84943eb99
- git.kernel.org/stable/c/8ca2a19a987a7d1cb4c916ed9723a1c6993b4276
- git.kernel.org/stable/c/bdfd1c21d90e628a58a9de79e024cdfcbedfa15c
- git.kernel.org/stable/c/e9c90756f10da334fb31552e52c61f1dba69f491
Merged from NVD. Last updated 23 Oct 2026. All vulnerabilities · RSS · JSON