I don’t have real-time access to the latest vulnerability feeds right now, but here’s what I can tell you about CVE-2026-31431 based on recent public disclosures.
CVE-2026-31431 is a Linux kernel vulnerability associated with the crypto: algif_aead path, described as a copy/failure in the associated data handling that can enable local privilege escalation under certain conditions. Several security trackers and advisories began publishing details in late April 2026. This type of issue typically requires local access, a low attack complexity, and low privileges to exploit, with the potential for root-level impact on vulnerable kernels. [CVE-2026-31431 details have appeared across multiple sources around April 2026, including Linux kernel advisories and CVE-tracking pages.]
Mitigations commonly involve applying the latest vendor and kernel updates that include the fix, ensuring systems are patched, and validating that any affected kernels are updated across all deployed environments (including embedded and containerized deployments). Workarounds, if provided by vendors, may include disabling affected features or using mitigations until patches are applied. Ubuntu and Red Hat advisories, among others, have published or linked advisories for this CVE as part of their security programs. [Ubuntu advisory page and multiple vendor advisories referenced in late April 2026 discussions.]
Exploitation in the wild has been discussed by several security communities, with some reports indicating coordinated disclosures and rapid patching by major Linux distributions. As with many kernel flaws, exposure can be broader in environments with custom kernels or delayed patch rollout. Users should review their distribution’s security advisories and apply patches promptly. [Industry reports and community discussions circulated in parallel with vendor advisories.]
Would you like me to:
If you want the latest, tell me which platforms you run (e.g., Ubuntu version, RHEL/CentOS version, kernel customizations) and I’ll tailor the guidance.
비특권 로컬 사용자가 authencesn, AF_ALG, splice()를 연결해 읽기 가능한 파일의 페이지 캐시 4바이트 쓰기를 만들고, 이를 통해 root 권한까지 올릴 수 있음커널별 오프셋이나 레이스 조건 없이 732바이트 Python 스크립트 하나로 여러 Linux 배포판에서 그대로 동작하며, 같은 익스플로잇으로 root shell 획득이 가능함영향
news.hada.ioJanuary brings a larger-than-of-late Patch Tuesday update out of Redmond, but an uptick in disclosures is often expected at this time of year.
www.computerweekly.comIn 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.
www.tenable.com비특권 로컬 사용자가 authencesn, AF_ALG, splice()를 연결해 읽기 가능한 파일의 페이지 캐시 4바이트 쓰기를 만들고, 이를 통해 root 권한까지 올릴 수 있음커널별 오프셋이나 레이스 조건 없이 732바이트 Python 스크립트 하나로 여러 Linux 배포판에서 그대로 동작하며, 같은 익스플로잇으로 root shell 획득이 가능함영향
news.hada.ioIn 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. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
feedly.comUbuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.
ubuntu.comHotfix Mitigation Applied on BlueOnyx Servers
www.blueonyx.itIn 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.
cve.akaoma.com