CLSA-2026-1777556512 Fix CVE(s): CVE-2026-35385

SECURITY UPDATE: setuid/setgid bits preserved on scp downloads without -p - debian/patches/CVE-2026-35385.patch: in legacy -O mode, OR 07000 into the saved umask in sink in scp.c so that setuid/setgid/sticky bits are stripped from received files when -p is not specified. - CVE-2026-35385...

CLSA-2026-1777547626 openssh: Fix of CVE-2026-35385

CVE-2026-35385: clear setuid/setgid bits when downloading files as root in scp legacy -O mode without the -p flag...

CLSA-2026-1777546896 openssh: Fix of CVE-2026-35385

CVE-2026-35385: when downloading files as root in legacy -O mode and without the -p preserve modes flag, scp1 did not clear setuid/setgid bits from downloaded files. Backport upstream commit 487e8ac1 to mask out the setuid/setgid bits in this case...

Exploit for CVE-2026-31431

CVE-2026-31431 Copy Fail Exploit A Linux kernel page cache co...

CLSA-2026-1777542837 Fix CVE(s): CVE-2026-35385

SECURITY UPDATE: scp setuid/setgid bit handling - debian/patches/CVE-2026-35385.patch: when downloading files as root in legacy -O mode and without the -p preserve modes flag, mask out setuid/setgid bits in scp1 sink. - CVE-2026-35385...

Exploit for CVE-2026-31431

CVE-2026-31431 Copy Fail Detection Toolkit Detection and an...

New Linux 'Copy Fail' Vulnerability Enables Root Access on Major Distributions

Cybersecurity researchers have disclosed details of a Linux local privilege escalation LPE flaw that could allow an unprivileged local user to obtain root. The high-severity vulnerability tracked as CVE-2026-31431 CVSS score: 7.8 has been codenamed Copy Fail by Xint.io and Theori. "An unprivilege...

EUVD-2026-26356

When exchanging data over a socket, libnv uses select2 to wait for data to arrive. However, it does not verify whether the provided socket descriptor fits in select2's file descriptor set size limit of FDSETSIZE 1024. An attacker who is able to force a libnv application to allocate large file...

CVE-2026-39457

When exchanging data over a socket, libnv uses select2 to wait for data to arrive. However, it does not verify whether the provided socket descriptor fits in select2's file descriptor set size limit of FDSETSIZE 1024. An attacker who is able to force a libnv application to allocate large file...

Exploit for CVE-2026-31431

CVE-2026-31431 — Copy Fail 中文版 732 Bytes t...

Exploit for CVE-2026-31431

CopyFail: CVE-2026-31431 Python implementation of copy.fail...

Amazon Linux 2023 : openssh, openssh-clients, openssh-keycat (ALAS2023-2026-1604)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1604 advisory. In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O legacy scp protocol and...

Amazon Linux 2 : openssh, --advisory ALAS2-2026-3262 (ALAS-2026-3262)

The version of openssh installed on the remote host is prior to 7.4p1-22. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3262 advisory. In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectation...

Important: openssh

Issue Overview: In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O legacy scp protocol and without -p preserve mode. CVE-2026-35385 Affected Packages: openssh Issue...

Important: openssh

Issue Overview: In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O legacy scp protocol and without -p preserve mode. CVE-2026-35385 Affected Packages: openssh Note: This...

USN-8222-1 openssh vulnerabilities

Christos Papakonstantinou discovered that the OpenSSH scp tool incorrectly handled the legacy scp protocol -O option. This could result in certain files being installed setuid or setgid, contrary to expectations. CVE-2026-35385 Florian Kohnhäuser discovered that OpenSSH incorrectly handled shell...

sudo: Sudo: Privilege escalation due to failure in privilege drop calls

A flaw was found in Sudo. A local user could exploit a failure in the setuid, setgid, or setgroups calls, which are used to drop privileges before running the mailer. This oversight allows for privilege escalation, enabling the user to gain elevated access on the system...

Copy Fail AF_ALG + authencesn Page-Cache Write

CVE-2026-31431 is a logic flaw in the Linux kernel's authencesn AEAD template that, when reached via the AFALG socket interface combined with splice, allows an unprivileged local user to perform a controlled 4-byte write into the page cache of any readable file. Because the corrupted pages are...

Arbitrary Code Execution

Overview Affected versions of this package are vulnerable to Arbitrary Code Execution in crypto/algifaead.c. The authencesn cryptographic template has a 4-byte overwrite past the end of its buffer, which can be controlled to write into the page cache of any readable file. This allows a...

JLSEC-2026-212

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...