Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2026-31431

Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability

HighExploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Linux, fix it now.

CISA required action: "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies must remediate by May 15, 2026.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorAffected versionsFixed inSource
LinuxLinux>= 4.14, < 5.10.254; >= 5.11, < 5.15.204; >= 5.16, < 6.1.170; >= 6.2, < 6.6.137; >= 6.7, < 6.12.85; >= 6.13, < 6.18.225.10.254; 5.15.204; 6.1.170; 6.6.137; 6.12.85; 6.18.22NVD
VeloCloud OrchestratorAristaall versions—NVD

Sources: NVD = NIST National Vulnerability Database.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdate

    CVE-2026-31431 scored CVSS 7.8

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdate

    Patch released for CVE-2026-31431

    An official fix is now available.

    Basis: NVD patch reference

  3. Disclosed

    Siemens SIPLUS and SIMATIC Products

    Basis: CISA Cybersecurity Advisories (government advisory)

1 earlier event is available with a subscription. See plans.

Coverage

HighPatchCISA KEV

Siemens SIPLUS and SIMATIC Products

Patch

Apply the vendor's security update for Linux.

CISA Cybersecurity AdvisoriesEnterpriseDevelopersCritical infra

References

  • git.kernel.org https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c
  • git.kernel.org https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc
  • git.kernel.org https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667
  • git.kernel.org https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82
  • git.kernel.org https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b
  • git.kernel.org https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
  • git.kernel.org https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
  • git.kernel.org https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/29/23
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/29/25
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/29/26
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/10
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/11
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/12
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/14
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/15
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/16
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/17
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/18
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/2
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/20
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/5
  • openwall.com http://www.openwall.com/lists/oss-security/2026/04/30/6
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/10
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/12
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/15
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/16
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/17
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/18
  • openwall.com http://www.openwall.com/lists/oss-security/2026/05/01/2