Attackers Exploit Critical Langflow and Rails Flaws in Credential-Probing and C2 Activity

Threat actors are exploiting two critical flaws impacting Langflow and Ruby on Rails, according to new findings from VulnCheck. The vulnerabilities in question are listed below - CVE-2026-0768 CVSS score: 9.8 - A lack of proper validation of a user-supplied input vulnerability that could be...

Linux Distros Unpatched Vulnerability : CVE-2026-44476

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public...

CVE-2026-44476

Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public information, can authenticate as that client at the token endpoint and obtain an access token without providing its clientsecret. This occu...

UBUNTU-CVE-2026-44476

Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public information, can authenticate as that client at the token endpoint and obtain an access token without providing its clientsecret. This occu...

CVE-2026-44476

Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public information, can authenticate as that client at the token endpoint and obtain an access token without providing its clientsecret. This occu...

CVE-2026-44476: Improper Authentication

Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's clientid, which is public information, can authenticate as that client at the token endpoint and obtain an access token without providing its clientsecret. This occu...

Astra Linux – Vulnerability in ruby-rails-html-sanitizer

Rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there was a potential XSS vulnerability with certain configurations of Rails::Html::Sanitizer, due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer might allow an attacke...

PT-2026-77143

Name of the Vulnerable Software and Affected Versions Mastodon versions prior to 4.4.19 Mastodon versions 4.5.0 through 4.5.11 Description When LDAP authentication is configured with LDAP TLS NO VERIFY=true, the file app/models/concerns/user/ldap authenticable.rb mutates...

CVE-2026-69185 vulnerabilities

Vulnerabilities for packages: gitlab-rails-ce, gitlab-rails-ce-fips...

CVE-2026-73648 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, ruby3.2-rails, ruby4.0-rails...

Linux Distros Unpatched Vulnerability : CVE-2026-67990

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - basecamp/upright at commit efe4f2e5254ac6e57e45d2261804cca74dbbca3f disables Rails CSRF protection for its Alertmanager and Prometheus proxy controllers. An...

Linux Distros Unpatched Vulnerability : CVE-2026-73648

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG...

CVE-2026-73427 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, ruby3.2-rails, ruby3.3-rails, ruby4.0-rails...

CVE-2026-73491 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, ruby3.2-rails, ruby4.0-rails...

CVE-2026-73490 vulnerabilities

Vulnerabilities for packages: ruby3.4-rails, ruby3.2-rails, ruby4.0-rails...

CVE-2026-73427 vulnerabilities

Vulnerabilities for packages: ruby3.2-rails, ruby3.4-rails, ruby4.0-rails, ruby3.3-rails...

CVE-2026-73491 vulnerabilities

Vulnerabilities for packages: gitlab-rails-ce-fips, ruby3.2-rails, pghero-fips, ruby3.4-rails, gitlab-rails-ce, pghero, ruby3.3-rails, ruby4.0-rails...

UBUNTU-CVE-2026-73648

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

CVE-2026-54463 vulnerabilities

Vulnerabilities for packages: gitlab-rails-ce, commercial-gitlab-rails-ee-fips, commercial-gitlab-rails-ee, gitlab-rails-ce-fips...

CVE-2026-72915 Mastodon: Personally-identifying information disclosure due to incorrect access control validation

Mastodon is a free, open-source social network server based on ActivityPub. From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collectionscontroller.rb to access personally identifying information about another local user in...