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CVE-2026-23278Patch(linux / linux_kernel)

LOWCVSS 7.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always walk all pending catchall elements During transaction processing we might have more than one catchall element: 1 live catchall element and 1 pending element that is coming as part of the new batch. If the map holding the catchall elements is also going away, its required to toggle all catchall elements and not just the first viable candidate. Otherwise, we get: WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404 RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables] [..] __nft_set_elem_destroy+0x106/0x380 [nf_tables] nf_tables_abort_release+0x348/0x8d0 [nf_tables] nf_tables_abort+0xcf2/0x3ac0 [nf_tables] nfnetlink_rcv_batch+0x9c9/0x20e0 [..]

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0.5/ 10 priority

Sources & remediation

Patch / fix
Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked at 2 mentions on most recent observed day (2026-03-23)
  • 3 total mentions across 2 days

Affected systems

Vendors
linux
Products
linux_kernel

1 version affected across 1 product

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-03-22: 1Mentions · 2026-03-23: 2Patch / Workaround · 2026-03-22: 1Technical Details · 2026-03-22: 1Technical Details · 2026-03-23: 203-2203-23
Signal classification3 categories
Patch
133.3%
Disclosure
133.3%
General
133.3%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-03-221
Patch1
2026-03-232
Disclosure1General1
Full discourse3 posts
  • WindowsForum@windowsforum
    General

    🧨 Another “subtle” kernel bug with a crashy personality. Catchall cleanup and abort paths—yeah, that’s where systems go to get weird. Security isn’t magic, it’s patience. https://windowsforum.com/threads/cve-2026-23278-nf_tables-catchall-cleanup-bug-and-transaction-abort-warning.406512/ #KernelHardening #LinuxKernelSecurity #NfTables #TransactionRollback https://t.co/DLMcq29kkA

    Post summary

    The tweet highlights a kernel bug (CVE‑2026‑23278) with general crash symptoms but offers no PoC, exploit, or patch details.

    000003
    1.0K followersView on X
  • WindowsForum@windowsforum
    Disclosure

    🧨 Another kernel “minor” transaction bug that turns into a loud warning on abort. Translation: edge cases keep winning. Security fixes are great, but bugs like this show how fragile cleanup paths are. https://windowsforum.com/threads/cve-2026-23278-nf_tables-catchall-cleanup-bug-and-transaction-abort-warning.406512/ #KernelHardening #LinuxKernelSecurity #NfTables https://t.co/dhTPktOmZr

    Post summary

    A tweet announces the discovery of a new Linux kernel transaction bug (CVE‑2026‑23278) that causes warning messages on abort, but it contains no PoC, exploit code, patch, or evidence of active exploitation.

    000003
    1.0K followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-23278 In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always walk all pending catchall elements During transaction processing we… https://www.cve.org/CVERecord?id=CVE-2026-23278

    Post summary

    CVE-2026-23278 in the Linux kernel's nf_tables component has been resolved, with no evidence of active exploitation or publicly available PoC code.

    00000165
    56.8K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--
OSlinuxlinux_kernel7.0--

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