CLSA-2026-1773830791 libssh: Fix of CVE-2026-3731

CVE-2026-3731: fix out-of-bounds read in sftpextensionsgetname and sftpextensionsgetdata when idx equals the extension count...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : libssh vulnerability (USN-8093-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8093-1 advisory. It was discovered that libssh incorrectly performed bounds checking when processing SFTP extensions. If a...

Ubuntu: Security Advisory (USN-8093-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for curl (EulerOS-SA-2026-1574)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for curl (EulerOS-SA-2026-1602)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP11 : curl (EulerOS-SA-2026-1602)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : curl's code for managing SSH connections when SFTP was done using the wolfSSH powered backend was flawed and missed host verification mechanisms.Thi...

EulerOS Virtualization 2.12.1 : libssh (EulerOS-SA-2026-1439)

According to the versions of the libssh package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in libssh's handling of key exchange KEX processes when a client repeatedly sends incorrect KEX guesses. The librar...

Advisory ROSA-SA-2026-3210

software: libssh 0.9.8 OS: ROSA-CHROME unaffected versions = libssh-0.9.8-3 affected versions libssh-0.9.8-3 CVE-ID: CVE-2025-5318 BDU-ID: 2025-09008 CVE-Crit: MEDIUM CVE-DESC.: A vulnerability in the sftphandle function of the LibSSH library involves reading data outside of buffer boundaries in...

OESA-2026-1560 libssh security update

The ssh library was designed to be used by programmers needing a working SSH implementation by the mean of a library. The complete control of the client is made by the programmer. With libssh, you can remotely execute programs, transfer files, use a secure and transparent tunnel for your remote...

CVE-2026-23942

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in Erlang OTP sshsftpd module allows Path Traversal. This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl and program routines sshsftpd:iswithinroot/2. The SFTP server uses string...

EUVD-2026-12073

SFTPGo improperly sanitizes placeholders in group home directories/key prefixes...

CVE-2026-23942

CVE-2026-23942 is a path traversal vulnerability in the Erlang OTP ssh_sftpd module. The SFTP server uses a prefix-based check instead of proper path validation, allowing an authenticated user to access sibling directories that share prefixes with the configured root (e.g., root /home/user1 and p...

CVE-2026-23942 SFTP root escape via component-agnostic prefix check in ssh_sftpd

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in Erlang OTP sshsftpd module allows Path Traversal. This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl and program routines sshsftpd:iswithinroot/2. The SFTP server uses string...

CVE-2026-23942 SFTP root escape via component-agnostic prefix check in ssh_sftpd

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' vulnerability in Erlang OTP sshsftpd module allows Path Traversal. This vulnerability is associated with program files lib/ssh/src/sshsftpd.erl and program routines sshsftpd:iswithinroot/2. The SFTP server uses string...

PT-2026-25164

Name of the Vulnerable Software and Affected Versions Erlang OTP versions 17.0 through 28.4.1 Erlang OTP versions 26.2.5.18 through 27.3.4.9 Description An improper limitation of a pathname to a restricted directory, specifically a 'Path Traversal' issue, exists in the Erlang OTP ssh sftpd module...

GHSA-67RW-2X62-MQQM Copyparty ftp/sftp: Sharing a single file did not fully restrict source-folder access

There was a missing permission-check in the shares feature the shr global-option. This vulnerability only applies in the following scenario: The shares feature is used for the specific purpose of creating a share of just a single file inside a folder Either the FTP or SFTP server is enabled, and...

CVE-2026-32108 Copyparty ftp/sftp: Sharing a single file did not fully restrict source-folder access

Copyparty is a portable file server. Prior to 1.20.12, there was a missing permission-check in the shares feature the shr global-option. This vulnerability only applies when the shares feature is used for the specific purpose of creating a share of just a single file inside a folder or either the...

curl: NULL Pointer Dereference (DoS) in libcurl SFTP QUOTE command parsing due to missing return statement

Summary: A logic flaw in lib/vssh/libssh2.c causes a NULL pointer dereference when parsing SFTP QUOTE commands with trailing garbage. The function returnquoteerror is called to handle errors and free memory, but the return keyword is missing in several blocks e.g., lines 840, 857, 870. This allow...

CVE-2026-3731

A flaw was found in libssh. A remote attacker could trigger an out-of-bounds read vulnerability in the SFTP Extension Name Handler by manipulating the idx argument in the sftpextensionsgetname or sftpextensionsgetdata functions. This could lead to a Denial of Service DoS, making the affected syst...

Linux Distros Unpatched Vulnerability : CVE-2026-3731

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftpextensionsgetname/sftpextensionsgetdata of the file src/sftp.c o...