Astra Linux – Vulnerability in xorg-server

A stack-based buffer overflow vulnerability was discovered in the X.Org X server and Xwayland. The XkbSetMapChecks function declares a fixed-size stack buffer, mapWidths256, indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a position controlled by the client,...

Astra Linux – Vulnerability in gnutls28

A timing side-channel vulnerability in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be used to recover the key encrypted in the RSA ciphertext across a network, in a Bleichenbacher-style attack. To successfully decrypt the data, the attacker would...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fixed a potential Use-after-Allocation UAF in cifsstatsprocshow. Skipped sessions that are being terminated status == SESEXITING to avoid UAF...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: smb: client: fixed a use-after-free bug in cifsdebugdataprocShow Skipped SMB sessions that are being torn down e.g., @ses-sesstatus == SESEXITING in cifsdebugdataProcShow to avoid use-after-free in @ses. This fixes the followi...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipmi: ssif: Initialize ssifinfo-client early. During the probe for ssifinfo-client, it is dereferenced incorrectly. However, this initialization occurs after some error checking has already been performed. This causes a kernel...

Astra Linux – Vulnerability in Qemu

An integer underflow issue was discovered in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could exploit this flaw to render QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service...

Astra Linux – Vulnerability in Linux 6.1

A use-after-free vulnerability in the Linux kernel’s fs/smb/client component can be exploited to gain local privilege escalation. In the event of an error in smb3fscontextParseparam, the ctx-password variable is freed, but the variable is not set to NULL, which could lead to a double-free. We...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/client: Fixed a memory leak in drmclientmodesetprobe. When a new mode is set to modeset-mode, the previous mode should be freed. This fixes the following kmemleak reports: drmmodeduplicate+0x45/0x220 drm...

Astra Linux – Vulnerability in Python 2.7, Python 3.7

A flaw was discovered in Python, specifically in the FTP File Transfer Protocol client library when operating in PASV passive mode. The issue arises from how the FTP client defaults to trusting the host based on the PASV response. This flaw allows an attacker to create a malicious FTP server that...

Astra Linux – Vulnerability in OpenSSH

In OpenSSH versions 5.7 through 8.4, there is an observable discrepancy that can lead to an information leak during algorithm negotiations. This vulnerability allows man-in-the-middle attackers to target initial connection attempts, where no host key has been cached by the client. NOTE: Some...

Astra Linux – Vulnerability in NTP

In the file libntp/mstolfp.c, within the NTP version 4.2.8p15, there is a buffer overflow vulnerability in the while loop of the cpcpdec function. An adversary could potentially attack a client NTPQ process, but they cannot attack the ntpd process...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: 9p: transfd/p9conn Cancel: release the client lock earlier. The syzbot reported a double-lock issue here, and we no longer need this lock after the requests have been moved to the local list. We can simply release the lock earlie...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the parameter processing of message-based management requests sent by an authenticated client with MANAGE permission. An attacker can cause excessive computation and pin the processing thread by...

Security Bulletin: IBM MQ .NET client is vulnerable to XML external entity injection (CVE-2026-12667)

Summary IBM MQ has addressed an XML external entity XXE vulnerability in the IBM MQ .NET client's RFH2 message parser Vulnerability Details CVEID:CVE-2026-12667 DESCRIPTION: IBM MQ could allow an authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service...

postgresql: PostgreSQL: Arbitrary code execution via untrusted data inclusion in pg_dump

A vulnerability in PostgreSQL allows a malicious origin-server superuser to achieve client-side arbitrary code execution during a database restore. By injecting untrusted data into a pgdump export, the attacker can exploit the input expansion of the psql \restrict meta-command. When a victim...

CVE-2026-90898

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...

Security Bulletin: IBM MQ .NET client is vulnerable to remote code execution (CVE-2026-11728)

Summary IBM MQ has addressed a heap buffer overflow vulnerability in the IBM MQ .NET client's asynchronous message receive handler Vulnerability Details CVEID:CVE-2026-11728 DESCRIPTION: IBM MQ .NET Client could allow a remote attacker to cause a denial of service or potentially execute arbitrary...

CVE-2026-90898 Bifrost unauthenticated remote code execution via MCP stdio client registration

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...

CVE-2026-90898

Bifrost (by maximhq) is vulnerable to unauthenticated remote code execution through its MCP stdio client registration endpoint. When a stdio client is registered via POST /api/mcp/client, Bifrost immediately spawns the specified command in the gateway—no MCP handshake required. By default, authen...

EUVD-2026-77357

Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required. The default is governance.authconfig.isenabled=false. Auth off means every caller is a local admin...