CVE-2026-31431-PoC

CVE-2026-31431 PoC Local Privilege Escalation in the Linux Kernel via algifaead Page Cache Write "Copy Fail" Author: Van Glenndon Enad Original Discovery: Theori / Xint Code Research Team Taeyang Lee Published: April 29, 2026 Severity: High CVSS v3.1 Score: 7.8 CVSS v3.1 Vector:...

Rocky Linux 8 [CIQ] Security Update: compat-libpthread-nonshared / glibc / glibc-all-langpacks / etc (crlsa-2025_8686)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20258686 advisory. glibc: static setuid binary dlopen may incorrectly search LDLIBRARYPATH CVE-2025-4802 Tenable has extracted the preceding description block directly from the CIQ...

Rocky Linux 9 [CIQ] Security Update: glibc / glibc-all-langpacks / glibc-benchtests / etc (crlsa-2025_8655)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20258655 advisory. glibc: static setuid binary dlopen may incorrectly search LDLIBRARYPATH CVE-2025-4802 Tenable has extracted the preceding description block directly from the CIQ...

CVE-2026-82429 Apache Storm Worker Launcher: Local Privilege Escalation to Root via a Time-of-Check Race in the Worker Launcher

Description The setuid-root worker-launcher binary adjusts ownership and permissions of worker directories by walking the tree with FTS and calling lchown and chmod on each entry's full pathname while running with an effective uid of 0. Both syscalls re-resolve the path at the time of the call,...

[SECURITY] Fedora 45 Update: bubblewrap-0.12.0-1.fc45

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

COPY-FAIL-CVE-2026-31431

This is a public Proof-of-Concept PoC for CVE-2026-31431 "Copy Fail", a Linux kernel local privilege escalation vulnerability CVSS 7.8 affecting most major distributions since 2017. It corrupts the page cache of a setuid binary like /usr/bin/su using the kernel's AFALG crypto API + splice, allowi...

[SECURITY] Fedora 43 Update: bubblewrap-0.12.0-1.fc43

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

[SECURITY] Fedora 44 Update: bubblewrap-0.12.0-1.fc44

Bubblewrap /usr/bin/bwrap is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces...

EUVD-2026-66234

When a process calls execve2 to execute a setuid or setgid image, hwpmc4 is supposed to detach PMCs owned by unprivileged processes. An inverted check meant that this scenario was not handled properly. An unprivileged local user who has attached PMCs to a process can continue monitoring it after...

EulerOS Virtualization 2.12.0 : polkit (EulerOS-SA-2026-2793)

According to the versions of the polkit packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the...

CVE-2026-49414

The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen. An unprivileged local user ca...

CVE-2026-45257

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

EUVD-2026-39780

The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data were anonymous and safe to modify. This assumption does not hold for data placed on a socket by sendfile2, which can reference file-backed memory directly through non-anonymous MEXTPG pages or...

FreeBSD : FreeBSD -- Arbitrary file overwrite via the KTLS receive path (f2c4892a-6472-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f2c4892a-6472-11f1-958d-bc241121aa0a advisory. The KTLS receive path decrypted each record in place, assuming that the mbufs holding received data wer...

EulerOS 2.0 SP13 : polkit (EulerOS-SA-2026-2307)

According to the versions of the polkit packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the polkit-agent-helper-1...

CentOS 9 : polkit-0.117-16.el9

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the polkit-0.117-16.el9 build changelog. - A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the polkit-agent-helper-1...

Exploit for Write-what-where Condition in Linux Linux_Kernel

CVE-2026-43284 xfrm/ESP page cache write exploit, 4 byte primit...

Exploit for Incorrect Resource Transfer Between Spheres in Linux Linux_Kernel

CVE-2026-31431 - Linux Kernel AFALG "Copy Fail" Local Privile...

CVE-2026-41702

VMware Fusion contains a TOCTOU Time-of-check Time-of-use vulnerability that occurs during an operation performed by a SETUID binary. A malicious actor with local non-administrative user privileges may exploit this vulnerability to escalate privileges to root on the system where Fusion is install...

EUVD-2026-30510

VMware Fusion contains a TOCTOU Time-of-check Time-of-use vulnerability that occurs during an operation performed by a SETUID binary. A malicious actor with local non-administrative user privileges may exploit this vulnerability to escalate privileges to root on the system where Fusion is install...