CVE-2026-67276 SSH user impersonation possible in Mikrotik RouterOS

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

CVE-2026-67276

MikroTik RouterOS is vulnerable to an SSH public-key authentication bypass (CWE-347). The server matches a presented public-key blob to an authorized key by key type and modulus only, omitting the exponent , and performs signature verification using the client-supplied key . An attacker who knows...

CVE-2026-67276: Improper Verification of Cryptographic Signature

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

VulnCheck KEV: CVE-2026-67276

RouterOS does not compare the complete RSA public key when matching an SSH authentication request to an authorized user key, checking the key type and modulus but omitting the exponent. Because signature verification uses the client-supplied key, an attacker knowing an authorized RSA modulus can...

SUSE CVE-2026-56854

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

PT-2026-86451

Name of the Vulnerable Software and Affected Versions RouterOS versions prior to 6.49.21 RouterOS versions prior to 7.23.4 RouterOS versions prior to 7.24.2 Description An issue exists in the SSH protocol implementation where the system fails to compare the complete RSA public key when matching a...

EUVD-2026-67741

The source-address critical option in the Permissions returned by an authentication callback was only enforced for the PublicKeyCallback and VerifiedPublicKeyCallback paths, extending the fix for CVE-2026-46595. Permissions returned by the PasswordCallback, KeyboardInteractiveCallback,...

GL.iNet-4.x-Init-PoC

GL.iNet-4.x-Init-PoC Security research PoC for ana...

ANT-2026-F5JK7RDG · supabase/postgres · other

other high Severity Claude high · Security research firm - · Maintainer - Discovered by Claude Mythos Preview REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-F5JK7RDG: Cloud image provisioned with default root password and SSH password auth The cloud-init user-data baked...

Security Bulletin: NVIDIA Cumulus Linux and NVOS - August 2026

NVIDIA has released a software update for NVIDIA® Cumulus Linux and NVOS. To protect your system, download and install the latest NVIDIA components from the NVIDIA Enterprise Support Portal. Go to NVIDIA Product Security. Details The following table summarizes the potential vulnerabilities that...

GHSA-2CP6-34R9-54XX

creationtimestamp| type| source ---|---|--- 2026-08-11 09:43:37+00:00| seen| https://gist.github.com/hayageek/05ef86a8272d03ab9e54ab5476cf7afe...

CVE-2026-44105: Insertion of Sensitive Information into Log File

The credentials for the local user "user-app" may be exposed in log files, potentially enabling a low-privileged local attacker with access to the logs to authenticate via SSH as the limited user "user-app". Charging could be interrupted...

openssh: Heap out-of-bounds read in Red Hat Enterprise Linux versions of OpenSSH GSSAPI indicator cleanup due to missing NULL sentinel termination

A flaw was found in OpenSSH. This vulnerability, a heap out-of-bounds read, occurs during the cleanup of GSSAPI Generic Security Service Application Programming Interface indicators when a trailing NULL termination is missing in the auth-indicators array. A remote attacker, under specific...

Apache MINA SSHD input validation error vulnerability

Apache MINA SSHD is a Java library for client-side and server-side SSH communication. The sshd-git component of Apache MINA SSHD has a vulnerability related to input validation errors. This vulnerability arises from GitPgmCommandFactory failing to properly validate the git commands entered by...

Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2025-14819, CVE-2026-1965, CVE-2026-3783, CVE-2026-3784, CVE-2026-5545)

Summary Multiple vulnerabilities in the curl/libcurl are related to TLS certificate validation logic and unauthorized actions. Vulnerability Details CVEID:CVE-2025-14819 DESCRIPTION: When doing TLS related transfers with reused easy or multi handles and altering the CURLSSLOPTNOPARTIALCHAIN optio...

Erlang/OTP -- timing-based username enumeration in SSH password authentication

https://github.com/erlang/otp/security/advisories/GHSA-3w6p-vwhf-wvp4 reports: A timing-based username enumeration vulnerability during password authentication with the userpasswords option has been fixed by performing a dummy PBKDF2 computation for invalid usernames, so authentication timing no...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal due to insufficient validation of file paths in git-upload-pack, git-receive-pack, and related git operations. An attacker can access files and repositories outside the intended git server root directory by sending...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the AuthorizedKeysFile %u token. An attacker can gain unauthorized SSH authentication by supplying a specially crafted username containing path traversal sequences, allowing the server to read an...

AZL-87759 CVE-2026-39828 affecting package gh for versions less than 2.62.0-17

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError...

AZL-88362 CVE-2026-39828 affecting package telegraf for versions less than 1.31.0-23

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError...