PYSEC-2026-166

Apache Airflow providers-google's ComputeEngineSSHHook disables SSH host-key verification by default, exposing SSH traffic between an Airflow worker and a Compute Engine VM to in-path network attackers who can intercept or modify the session. Users are advised to upgrade to...

PYSEC-2026-166

Apache Airflow providers-google's ComputeEngineSSHHook disables SSH host-key verification by default, exposing SSH traffic between an Airflow worker and a Compute Engine VM to in-path network attackers who can intercept or modify the session. Users are advised to upgrade to...

EUVD-2026-31659

Apache Airflow providers-google's ComputeEngineSSHHook disables SSH host-key verification by default, exposing SSH traffic between an Airflow worker and a Compute Engine VM to in-path network attackers who can intercept or modify the session. Users are advised to upgrade to...

"What Is the Problem Space?" Defining Host-Space Adversarial Perturbations against Network Intrusion Detection Systems

Network Intrusion Detection Systems NIDS are now increasingly leveraging Machine Learning ML techniques to detect malicious network activities. Numerous papers have scrutinized the security of ML-based NIDS ML-NIDS by testing them against various attacks involving adversarial perturbations. The...

Linux Distros Unpatched Vulnerability : CVE-2026-39834

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop t...

SUSE CVE-2026-39827

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

SUSE CVE-2026-39830

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...

CVE-2025-46371

Dell PowerFlex Manager, versions =4.6.2, contains a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the ssh. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

CVE-2025-46371

Dell PowerFlex Manager, versions =4.6.2, contains a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the ssh. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

EUVD-2025-209924

Dell PowerFlex Manager, versions =4.6.2, contains a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the ssh. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

CVE-2025-46371

Dell PowerFlex Manager, versions =4.6.2, contains a Use of a Broken or Risky Cryptographic Algorithm vulnerability in the ssh. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

Cloud Atlas activity in the second half of 2025 and early 2026: new tools and a new payload

In 2025, we observed pervasive SSH tunnel activity, which has remained active into 2026, affecting many government organizations and commercial companies in Russia and Belarus. Behind some of this activity is Cloud Atlas, a group we have known since 2014. During our investigation, we identified n...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization due to the NewKeyring function not enforcing the ConfirmBeforeUse constraint. An attacker can perform unauthorized signing operations by adding keys with constraints that are silently ignored. Remediation Upgrade...

Allocation of Resources Without Limits or Throttling

Overview golang.org/x/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the public key parsers. An attacker can exhaust CPU resources by submitting crafted RSA or DSA public keys with excessively larg...

Improper Authentication

Overview github.com/golang/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Improper Authentication due to the Verify method not checking the User Presence flag in FIDO/U2F security key types. An attacker can perform unauthorized authentication by generati...

Incorrect Authorization

Overview golang.org/x/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Incorrect Authorization. When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially droppin...

Incorrect Type Conversion or Cast

Overview golang.org/x/crypto/ssh is a SSH client and server Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast due to an incorrectly placed cast from bytes to int in the AES-GCM packet decoder process. An attacker can cause a server-side panic by sending special...

Incorrect Type Conversion or Cast

Overview Affected versions of this package are vulnerable to Incorrect Type Conversion or Cast due to the improper handling of crafted input data in the ed25519.PrivateKey component. An attacker can cause the client to panic by supplying malformed wire bytes. Remediation Upgrade...

CVE-2026-39834

When writing data larger than 4GB in a single Write call on an SSH channel, an integer overflow in the internal payload size calculation caused the write loop to spin indefinitely, sending empty packets without making progress. The size comparison now uses int64 to prevent truncation...

CVE-2026-39835

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...