Kopia Server 0.23.0 - Remote Code Execution

Kopia before version 0.23.0 allows unauthenticated remote code execution when started in server mode with the --without-password flag. When the /api/v1/repo/exists endpoint is exposed, it enables instantiation of the SFTP storage backend with user-supplied sshArguments. Due to improper argument...

CVE-2026-47187

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local...

EUVD-2026-62493

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local...

CVE-2026-47187

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local...

CVE-2026-47187 SSHFS Symlink Escape: Rogue SFTP Server → Local File Read/Write

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local...

CVE-2026-47187

Prior to sshfs 3.7.6, the transform_symlink() mitigation returns early at sshfs.c:2181 without handling relative symlink targets, while sshfs_readlink() (sshfs.c:2234–2236) copies server-supplied targets to the kernel. A rogue SFTP server can thus direct local tools (cp, rsync, editors) to read o...

CVE-2026-47187 SSHFS Symlink Escape: Rogue SFTP Server → Local File Read/Write

SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local...

CVE-2026-49255 electerm: Command Injection in File System Operations (rmrf, mv, cp)

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm constructs operating system commands in src/app/lib/fs.js by interpolating untrusted file paths into the rmrf, mv, and cp functions. A malicious SSH or SFTP server can provide a...

CVE-2026-49255

In electerm versions prior to 3.11.11, the rmrf(), mv(), and cp() functions in src/app/lib/fs.js interpolate untrusted file paths into shell command strings without escaping metacharacters. A malicious SSH/SFTP server can supply filenames like file"$(touch /tmp/pwned)" to break out of quotes and ...

USN-8093-2 libssh vulnerability

USN-8093-1 fixed a vulnerability in libssh. This update provides the corresponsing fix for Ubuntu 26.04 LTS. Original advisory details: It was discovered that libssh incorrectly performed bounds checking when processing SFTP extensions. If a client application queried extension data out of bounds...

CVE-2026-62598

Vulnerability in the Oracle Hyperion Calculation Manager product of Oracle Hyperion component: Security. The supported version that is affected is 11.2.25.0.000. Difficult to exploit vulnerability allows low privileged attacker with network access via SFTP to compromise Oracle Hyperion Calculatio...

GHSA-6C8M-Q6G9-VRW3 Lemur: Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations API

Summary Lemur's destination read endpoints -- GET /api/1/destinations and GET /api/1/destinations/ -- return the full set of stored plugin option values to any authenticated user, with no authorization check and no redaction of secret-bearing options. The sibling write endpoints POST/PUT/DELETE a...

CVE-2026-71307 Lemur: Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations API

Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required adminpermission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting...

EUVD-2026-61153

Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required adminpermission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting...

CVE-2026-71307

In Lemur before 1.9.3, GET /api/1/destinations endpoints required only basic authentication, allowing low-privilege users to read plaintext SFTP passwords and private-key passphrases stored by the sftp-destination plugin. CVSS 7.7 HIGH (network, low complexity). Fixed in 1.9.3 by requiring admin ...

CVE-2026-71307 Lemur: Authenticated low-privilege users can read plaintext destination credentials (SFTP password / private-key passphrase) via the destinations API

Lemur manages TLS certificate creation. Prior to 1.9.3, GET /api/1/destinations and GET /api/1/destinations/ relied only on authentication while sibling write handlers required adminpermission. DestinationOutputSchema returned raw options and copied them into pluginOptions without redacting...

libssh: libssh: denial of service via oversized SFTP read length

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...

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 ...

Important: Red Hat Security Advisory: libssh security update

An update for libssh is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

libssh: libssh: denial of service via SFTP responses with unknown request IDs

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...