Mattermost fails to properly validate User-Agent header tokens

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

EUVD-2026-12416

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

Improper Validation of Specified Type of Input

Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Improper Validation of Specified Type of Input due to improper validation of User-Agent header tokens. An attacker can trigger a panic in the...

EUVD-2015-9423

Next Click Ventures RealtyScript 4.0.2 contains SQL injection vulnerabilities that allow unauthenticated attackers to manipulate database queries by injecting arbitrary SQL code through the GET parameter 'uid' in /admin/users.php and the POST parameter 'agent' in /admin/mailer.php. Attackers can...

CVE-2026-32628

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. In 1.11.1 and earlier, a SQL injection vulnerability in the built-in SQL Agent plugin allows any user who can invoke the agent to execute arbitrary SQL commands on connected...

CVE-2026-25783

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CVE-2015-20121

Next Click Ventures RealtyScript 4.0.2 contains SQL injection vulnerabilities that allow unauthenticated attackers to manipulate database queries by injecting arbitrary SQL code through the GET parameter 'uid' in /admin/users.php and the POST parameter 'agent' in /admin/mailer.php. Attackers can...

CVE-2026-25783 Denial of service via malformed User-Agent header in getBrowserVersion

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CVE-2026-25783

CVE-2026-25783 affects Mattermost versions 11.3.x up to 11.3.0, 11.2.x up to 11.2.2, and 10.11.x up to 10.11.10. An authenticated attacker can trigger a request panic by sending specially crafted User-Agent header, due to improper validation of User-Agent header tokens. The CVSS score is 4.3 (Med...

CVE-2026-25783 Denial of service via malformed User-Agent header in getBrowserVersion

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CVE-2026-25783

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CVE-2026-25783 Denial of service via malformed User-Agent header in getBrowserVersion

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586...

CLSA-2026-1773653586 curl: Fix of CVE-2025-15224

CVE-2025-15224: fix libssh public-key auth fallback to SSH agent...

Security Bulletin: Unexpected SSH_AGENT_SUCCESS Response Causes Client Panic and Premature Termination in SSH Client, affects watsonx.data

Summary SH clients receiving SSHAGENTSUCCESS when expecting a typed response will panic and cause early termination of the client process. This can affect watsonx.data. Vulnerability Details CVEID:CVE-2025-47913 DESCRIPTION: SSH clients receiving SSHAGENTSUCCESS when expecting a typed response wi...

ClawWorm: Self-Propagating Attacks across LLM Agent Ecosystems

Autonomous LLM-based agents increasingly operate as long-running processes forming densely interconnected multi-agent ecosystems, whose security properties remain largely unexplored. In particular, OpenClaw, an open-source platform with over 40,000 active instances, has stood out recently with it...

EulerOS Virtualization 2.10.0 : curl (EulerOS-SA-2026-1552)

According to the versions of the curl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that...

RealtyScript SQL注入漏洞

RealtyScript is a real estate website management system developed by RealtyScript Inc. Version 4.0.2 of RealtyScript has a SQL injection vulnerability, which stems from improper cleaning of the uid and agent parameters. This vulnerability could allow unverified attackers to inject arbitrary SQL...

EulerOS 2.0 SP10 : curl (EulerOS-SA-2026-1305)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When an OAuth2 bearer token is used for an HTTPS transfer, and that transfer performs a cross-protocol redirect to a second URL that uses an IMAP,...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Versions of Mattermost such as 11.3.0 and earlier 11.3.x series, 11.2.2 and earlier 11.2.x series, as well as 10.11.10 and earlier 10.11.x series, have security vulnerabilities. These vulnerabilities...

EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-1386)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When doing multi-threaded LDAPS transfers LDAP over TLS with libcurl, changing TLS options in one thread would inadvertently change them globally an...