---
cve: "CVE-2026-74565"
severity: "HIGH"
cvss: 7.8
epss: "12%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-15 13:18:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T17:44:40+02:00"
---

# CVE-2026-74565

> 7.8 HIGH

## Beschreibung

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

netfilter: nf_tables: make nft_object rhltable per table

The nft_object rhltable is global, this allows for accessing objects
that are being dismangled from lookup path by other existing netns.
Given the nft_obj_destroy() releases the object inmediately, this might
lead to use-after-free of these objects that are being released.
Make the existing rhltable per table to address this issue to deal with
with the nft_rcv_nl_event() path too.

Update nft_obj_lookup() to take the table as non-const, otherwise,
compiler complains when passing the objname_ht to rhltable_lookup().

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 6.12.103
- Kernel ≥ 6.18.44
- Kernel ≥ 7.1.8

## Referenzen

- <https://git.kernel.org/stable/c/1948e4f85b855618b5b9a27265f98d816f4cb7cb>
- <https://git.kernel.org/stable/c/63ba12b664a2cd3220ed43e22c717715f4cc2ae8>
- <https://git.kernel.org/stable/c/7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af>
- <https://git.kernel.org/stable/c/f4f699790590bd0896c48a71e9232a65198f92f0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-74565) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_