Linux Distros Unpatched Vulnerability : CVE-2026-59849

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clients to loop indefinitely when configured...

Linux Distros Unpatched Vulnerability : CVE-2026-59847

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an...

Linux Distros Unpatched Vulnerability : CVE-2026-59842

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without...

Linux Distros Unpatched Vulnerability : CVE-2026-59848

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded...

Fedora 43 : libssh (2026-063caa9112)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-063caa9112 advisory. New upstream security release 2503148 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that...

SUSE CVE-2026-59844

A flaw was found in libssh. A remote authenticated client can issue SSHFXPREAD requests with an arbitrarily large length, causing a libssh SFTP server to allocate excessive memory and potentially exhaust it through repeated requests...

SUSE CVE-2026-59850

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions...

Security Bulletin: Vulnerabilities in multiple components affect IBM SAN Volume Controller, IBM Spectrum Virtualize and IBM FlashSystem products

Summary Vulnerabilities in openssh, libssh, kernel and gnutls components affect IBM Storage Virtualize products and could cause confidentiality, integrity and availability impacts. CVE-2026-35387 CVE-2026-35414 CVE-2025-5372 CVE-2022-50865 CVE-2025-39971 CVE-2025-14831. Vulnerability Details...

CVE-2026-59848

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service...

CVE-2026-59847

A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection...

CVE-2026-59846

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior...

CVE-2026-59846

A flaw was found in libssh. A malicious username expanded through %r in ProxyCommand handling can inject shell metacharacters, exposing environment variables and causing unintended shell behavior. Mitigation Make sure you are not executing connections with untrusted username inputs...

CVE-2026-59844

CVE-2026-59844 affects libssh: a remote authenticated client can send SSH_FXP_READ with an arbitrarily large length to a libssh SFTP server, causing excessive memory allocation and potential exhaustion via repeated requests. Documents confirm the flaw and its impact (memory exhaustion) across mul...

CVE-2026-59843

A flaw was found in libssh. A remote authenticated peer can advertise a zero maximum packet size in SSHMSGCHANNELOPEN, causing later channel writes to loop indefinitely and consume CPU, leading to denial of service...

Astra Linux – Vulnerability in libssh

A flaw was discovered in libssh, where a malicious SFTP SSH File Transfer Protocol server can exploit this by sending a malformed ‘longname’ field within an SSHFXPNAME message during a file listing operation. This missing null check can lead to reading beyond the allocated memory on the heap. Thi...

Astra Linux – Vulnerability in libssh

A vulnerability has been identified in libssh up to version 0.11.3. The affected element is the function sftpextensionsgetname/sftpextensionsgetdata in the file src/sftp.c of the SFTP Extension Name Handler component. Performing operations on the argument idx can lead to out-of-bounds read...

EulerOS Virtualization 2.13.0 : libssh (EulerOS-SA-2026-2405)

According to the versions of the libssh packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A weakness has been identified in libssh up to 0.11.3. The impacted element is the function...

EulerOS 2.0 SP13 : libssh (EulerOS-SA-2026-2299)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftpextensionsgetname/sftpextensionsgetdata of the fil...

EulerOS 2.0 SP13 : libssh (EulerOS-SA-2026-2342)

According to the versions of the libssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A weakness has been identified in libssh up to 0.11.3. The impacted element is the function sftpextensionsgetname/sftpextensionsgetdata of the fil...

RHEL 8 : libssh (RHSA-2026:24349)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:24349 advisory. libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fixes: libssh: Incorrect...