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Copy-Fail---CVE-2026-31431 — CVE-2026-31431 "Copy Fail" - Analysis and defensive research for the Linux kernel AF_ALG privilege escalation vulnerability affecting all major distributions since 2017. 100% reliable LPE via authencesn logic flaw | Kitploit
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GitHubsilent0x0/copy-fail---cve-2026-31431

Copy-Fail---CVE-2026-31431

CVE-2026-31431 "Copy Fail" - Analysis and defensive research for the Linux kernel AF_ALG privilege escalation vulnerability affecting all major distributions since 2017. 100% reliable LPE via authencesn logic flaw

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Copy-Fail---CVE-2026-31431

CVE-2026-31431 "Copy Fail" - Analysis and defensive research for the Linux kernel AF_ALG privilege escalation vulnerability affecting all major distributions since 2017. 100% reliable LPE via authencesn logic flaw

Files include a binary , that automates the whole process for environments that dont have python installed . also python file that does the same thing the binary does .

run ./copyfail_lpe_amd64 on the target device or the python3 lpe_universal.py file on the target and su root after that .

Mitigation script , hunting and detection rules are provided

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