155 matches found
CVE-2026-59851
A flaw was found in libssh. On servers with GSSAPIKeyExchange enabled, the gssapi-keyex path does not verify whether the authenticated Kerberos principal is authorized for the requested local user, allowing authenticated clients to log in as arbitrary users...
EUVD-2026-46266
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...
CVE-2026-59847 Libssh: libssh: integrity downgrade via openssl aes-gcm tag verification
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-2026-59842
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 proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small...
PT-2026-61940
Name of the Vulnerable Software and Affected Versions libssh affected versions not specified Description A flaw exists where a malicious SFTP server can send responses for unknown request IDs. The libssh client queues these responses indefinitely, leading to unbounded memory growth and a...
EulerOS Virtualization 2.10.1 : libssh2 (EulerOS-SA-2026-2827)
According to the versions of the libssh2 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function userauthpassword of the fi...
RHEL 9 : buildah (RHSA-2026:37410)
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:37410 advisory. The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a...
AlmaLinux 10 : buildah (ALSA-2026:36199)
The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:36199 advisory. golang.org/x/crypto/ssh: golang: golang.org/x/crypto/ssh: Denial of Service via crafted SSH certificate CVE-2026-39835 golang.org/x/crypto/ssh:...
UBUNTU-CVE-2026-58051
libssh2 through 1.11.1 grows its publickey list with SSH2REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2publickeylistfree operating on an uninitialized entry. A malicious SSH server offering the publickey...
OPENSUSE-SU-2026:21069-1 Security update for google-guest-agent
This update for google-guest-agent fixes the following issues - CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper validation of the HTTP/2 :path pseudo- header bsc1260264. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allo...
GHSA-VGWF-H737-FF37 golang.org/x/crypto: Invoking client can cause server deadlock on unexpected responses
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close, resulting in a resource leak per connection. Unsolicited global responses are now discarded...
golang.org/x/crypto is vulnerable to invoking server panic during CheckHostKey/Authenticate flow
SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil...
OPENSUSE-SU-2026:11109-1 libssh2-1-1.11.1-3.1 on GA media
These are all security issues fixed in the libssh2-1-1.11.1-3.1 package on the GA media of openSUSE Tumbleweed...
CVE-2026-48110
CVE-2026-48110 affects Russh, a Rust SSH client/server library. From 0.34.0 up to before 0.61.0, several client/server message handlers decoded attacker-controlled SSH strings, name-lists, and byte fields into owned allocations before applying field-specific bounds. A remote SSH peer could send o...
CVE-2026-46673 Russh: Unchecked CryptoVec allocation and growth handling is reachable from local agent inputs in current russh releases and from remote SSH traffic in historical pre-0.58.0 releases
Russh is a Rust SSH client & server library. Prior to version 0.60.3, CryptoVec used unchecked capacity growth, unchecked length arithmetic, and unsafe allocation/locking paths. In current russh releases, local SSH agent peers could still feed attacker-controlled frame lengths into buffer growth...
assistant_daemon (0.1.0), async-ssh2-tokio (>=0.2.0, <=0.8.11) +7 more potentially affected by CVE-2026-46702 via russh (>=0.34.0, <=0.43.0)
russh CARGO version =0.34.0, =0.2.0, =0.1.0, =0.1.0, =0.2.0, =0.1.0, =0.4.1 - sshrpc 0.1.0 - tunnels 0.1.0 Source cves: CVE-2026-46702 Source advisory: OSV:GHSA-WWX6-X28X-8259...
libssh security update
An update is available for libssh. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list libssh is a library which implements the SSH protocol. It can be used to...
RLSA-2026:18683 Moderate: libssh security update
libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fixes: libssh: Double Free Vulnerability in libssh Key Export Functions CVE-2025-5351 libssh: Use of uninitialized variable in privatekeyfromfile CVE-2025-4878 libssh: Write...
