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CVE-2026-31543General(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 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: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enabled, read_key_from_user_keying() logs the first 8 bytes of the key payload and partially exposes the dm-crypt key. Stop logging any key bytes.

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0.5/ 10 priority

Sources & remediation

Patch / fix

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
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-24); latest day: 1
  • 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 · 2026-04-24: 2Mentions · 2026-05-15: 1Patch / Workaround · 2026-04-24: 1Technical Details · 2026-04-24: 2Technical Details · 2026-05-15: 104-2405-15
Signal classification3 categories
General
133.3%
Patch
133.3%
Disclosure
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-242
General1Patch1
2026-05-151
Disclosure1
Full discourse3 posts
  • Limitless Hosting@LimitlessHosts
    Disclosure

    🚨 Linux Security Alert: CVE-2026-31543 Linux kernel flaw may expose portions of encryption keys through debug logging. Researchers warn key data can leak into logs on affected systems. If you run Linux servers, read this now 👇 https://limitlesshost.net/linux-security-alert-cve-2026-31543/ #Linux #CyberSecurity https://t.co/wZlVqpQ8IH

    Post summary

    The tweet announces the discovery of CVE-2026-31543, a Linux kernel flaw that can leak encryption keys via debug logs, without providing PoC, exploit details, or patch information.

    0000056
    94 followersView on X
  • Infoflowcloud@infoflowcloud
    General

    🚨*CVE* CVE-2026-31543 In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enab… https://www.cve.org/CVERecord?id=CVE-2026-31543 ----- Traducción: CVE-2026-31543 En … http://infoflow.cloud`

    Post summary

    The text briefly announces that CVE‑2026‑31543, a Linux kernel flaw involving dm‑crypt key logging in crash_dump, has been fixed, without detailing patches, exploits, or active exploitation.

    0000042
    72 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-31543 In the Linux kernel, the following vulnerability has been resolved: crash_dump: don't log dm-crypt key bytes in read_key_from_user_keying When debug logging is enab… https://www.cve.org/CVERecord?id=CVE-2026-31543

    Post summary

    A Linux kernel vulnerability identified as CVE‑2026‑31543 concerning dm‑crypt key logging has been addressed with a patch.

    00000177
    57.2K followersView on X
CPE platform detail5 entries

5 of 5 entries

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

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