CVE•Published 2026-04-22•Modified 2026-05-21•8 articles on news•5 live references•NVD data
CVE-2026-31431Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
79
Exploit Prediction Scoring System · top 21% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-04-22
Modified 2026-05-21
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag291 hosts
vuln:CVE-2026-31431Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2026-31431Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-31431Censys host search filtered to this CVE id.
grep.app
CVE-2026-31431Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-31431GitHub code search for direct mentions.
Google dork
"CVE-2026-31431" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-314318 repos
nomi-sec/PoC-in-GitHubunknown
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
Mr-xn/Penetration_Testing_POCHTML
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypas…
xairy/linux-kernel-exploitationunknown
A collection of links related to Linux kernel security and exploitation
Threekiii/Awesome-POCJava
一个漏洞 PoC 知识库。A knowledge base for vulnerability PoCs(Proof of Concept), with 1k+ vulnerabilities.
cdk-team/CDKGo
📦 Make security testing of K8s, Docker, and Containerd easier.
theori-io/copy-fail-CVE-2026-31431Python
Copy Fail (CVE-2026-31431): 9-year-old Linux kernel LPE found by Theori's Xint Code
jekil/awesome-hackingPython
Awesome hacking is an awesome collection of hacking tools.
0xsyr0/OSCPPowerShell
OSCP Cheat Sheet