Ruby SAML allows a SAML authentication bypass due to namespace handling (parser differential)

Summary An authentication bypass vulnerability was found in ruby-saml due to a parser differential. ReXML and Nokogiri parse XML differently, the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping...

CVE-2025-27773 SimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect binding

The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can cause the application to...

GO-2025-3505 Fleet has SAML authentication vulnerability due to improper SAML response validation in github.com/fleetdm/fleet

Fleet has SAML authentication vulnerability due to improper SAML response validation in github.com/fleetdm/fleet. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports...

CVE-2025-27509

fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time JIT provisioning is enabled, or create new...

GHSA-52JX-G6M5-H735 Fleet has SAML authentication vulnerability due to improper SAML response validation

Summary A vulnerability in Fleet’s SAML authentication handling could allow an attacker to forge authentication assertions and gain unauthorized access to Fleet. In certain configurations, this could result in the creation of new user accounts, including administrative accounts. This issue affect...

Fleet has SAML authentication vulnerability due to improper SAML response validation

Summary A vulnerability in Fleet’s SAML authentication handling could allow an attacker to forge authentication assertions and gain unauthorized access to Fleet. In certain configurations, this could result in the creation of new user accounts, including administrative accounts. This issue affect...

CVE-2025-27509 SAML authentication vulnerability due to improper SAML response validation

fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time JIT provisioning is enabled, or create new...

CVE-2025-27509 SAML authentication vulnerability due to improper SAML response validation

fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time JIT provisioning is enabled, or create new...

CVE-2025-27509 SAML authentication vulnerability due to improper SAML response validation

fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time JIT provisioning is enabled, or create new...

CVE-2025-27509

Fleet has a SAML authentication vulnerability (CVE-2025-27509) due to improper SAML response validation in fleetdm/fleet. In vulnerable versions, an attacker could forge authentication assertions, potentially provisioning a new administrative user under JIT provisioning or creating accounts tied ...

Improper Access Control

Rancher is vulnerable to Improper Access Control. The vulnerability is due to improper access due to unauthenticated users being able to list and delete CLI authentication tokens before they can be retrieved, preventing CLI-based login for SAML-authenticated users...

Improper Authentication

Rancher is vulnerable to Improper Authentication. The vulnerability is due to improper validation of SAML assertion data due to Rancher trusting and using unvalidated values in authentication cookies, allowing attackers to manipulate session data and escalate privileges...

Malicious code in saml-sp-linking-sample (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 4cefc3296ba659b91b026973376ed7a792b2c6c13d304e42d3742eddd7ae5ed0 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

GO-2025-3490 Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login in github.com/rancher/rancher

Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login in github.com/rancher/rancher. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this...

GO-2025-3489 Rancher's SAML-based login via CLI can be denied by unauthenticated users in github.com/rancher/rancher

Rancher's SAML-based login via CLI can be denied by unauthenticated users in github.com/rancher/rancher. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from...

Ubuntu: Security Advisory (USN-7309-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-7309-1 Ruby SAML vulnerabilities

It was discovered that Ruby SAML did not properly validate SAML responses. An unauthenticated attacker could use this vulnerability to log in as an abitrary user. This issue only affected Ubuntu 16.04 LTS. CVE-2016-5697 It was discovered that Ruby SAML incorrectly utilized the results of XML DOM...

USN-7309-1: Ruby SAML vulnerabilities

It was discovered that Ruby SAML did not properly validate SAML responses. An unauthenticated attacker could use this vulnerability to log in as an abitrary user. This issue only affected Ubuntu 16.04 LTS. CVE-2016-5697 It was discovered that Ruby SAML incorrectly utilized the results of XML DOM...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : Ruby SAML vulnerabilities (USN-7309-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7309-1 advisory. It was discovered that Ruby SAML did not properly validate SAML responses. An unauthenticated...

Rancher does not Properly Validate Account Bindings in SAML Authentication Enables User Impersonation on First Login

Impact A vulnerability in Rancher has been discovered, leading to a local user impersonation through SAML Authentication on first login. The issue occurs when a SAML authentication provider AP is configured e.g. Keycloak. A newly created AP user can impersonate any user on Rancher by manipulating...