CVE-2026-15370 Libssh: libssh: stack buffer overflow in sftp server longname construction

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead ...

CVE-2026-15370 Libssh: libssh: stack buffer overflow in sftp server longname construction

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead ...

CVE-2026-15370

CVE-2026-15370 is a vulnerability in libssh where, during SFTP server directory listing, the longname field is built by unsafe string concatenation into a fixed-size stack buffer. This can allow sufficiently long attacker-controlled filenames to overflow the stack, potentially crashing the server...

Stack-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Stack-based Buffer Overflow in the construction of the longname field during SFTP server directory listing. An attacker can cause a crash or execute arbitrary code on the server by supplying specially crafted, excessively long filenames...

CVE-2026-59848: Allocation of Resources Without Limits or Throttling

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-2026-59844: Memory Allocation with Excessive Size Value

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...

CVE-2026-15370: Stack-based Buffer Overflow

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead ...

CVE-2026-13380

VSee Clinic 7.1.26 and VSee Clinic API 1.3.0 exposes cleartext SFTP credentials in the HTTP responses of three unauthenticated endpoints. The credentials are present in these responses only when SFTP connections have been configured within the application. No authentication is required to retriev...

UBUNTU-CVE-2026-59995

sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server...

CVE-2026-59995

sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server...

CVE-2026-5268

An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass security controls and gain unauthorized access to the underlying filesystem. Successful exploitation...

CVE-2026-5268 SFTP Server Authentication Weakness

An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass security controls and gain unauthorized access to the underlying filesystem. Successful exploitation...

PYSEC-0000-CVE-2026-49297

Apache Airflow's Google provider operators GCSToSFTPOperator and GCSTimeSpanFileTransformOperator joined GCS object names returned by the bucket listing API directly to a destination filesystem path without normalisation or containment check. A user with write access to the source GCS bucket...

CVE-2026-5268: Authentication Bypass Using an Alternate Path or Channel

An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass security controls and gain unauthorized access to the underlying filesystem. Successful exploitation...

CVE-2026-54886

The vulnerability CVE-2026-54886 affects Erlang/OTP's SSH server side (ssh_sftpd) and allows an authenticated SFTP client to trigger an infinite loop on a channel by sending SSH_MSG_CHANNEL_EXTENDED_DATA. The handle_data/4 clause tail-calls itself when a non-zero data_type_code arrives with an em...

EEF-CVE-2026-53422 SFTP REALPATH path-existence oracle allowing filesystem enumeration outside configured root

Summary Observable Response Discrepancy vulnerability in Erlang OTP ssh ssh\sftpd module allows an authenticated SFTP user to enumerate the existence of files and directories outside the configured root directory. The SSH\FXP\REALPATH handler in ssh\sftpd calls relate\file\name/3 with...

EUVD-2026-41410

Observable Response Discrepancy vulnerability in Erlang OTP ssh sshsftpd module allows an authenticated SFTP user to enumerate the existence of files and directories outside the configured root directory. The SSHFXPREALPATH handler in sshsftpd calls relatefilename/3 with Canonicalize=false, unlik...

CVE-2026-50203: Improper Limitation of a Pathname to a Restricted Directory

A path traversal in the SFTP provider SFTPHook.retrievedirectory / SFTPOperatoroperation=get let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-entry names. No Airflow account is required — the attack surface is a...

CVE-2026-40987

A malicious or compromised FTP/SFTP/SMB server can write arbitrary files anywhere on the client filesystem outside the configured local-directory with attacker-controlled content. Affected versions: Spring Integration 7.0.0 through 7.0.4; 6.5.0 through 6.5.8; 6.4.0 through 6.4.11; 6.3.0 through...

Updated libssh packages fix security vulnerabilities

CVE-2025-4877 Write beyond bounds in binary to base64 conversion functions CVE-2025-4878 Use of uninitialized variable in privatekeyfromfile CVE-2025-5318 Likely read beyond bounds in sftp server handle management CVE-2025-5351 Double free in functions exporting keys CVE-2025-5372 sshkdf returns ...