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The Hacker News
The Hacker News Vulnerabilities

New Silver SAML Attack Evades Golden SAML Defenses in Identity Systems

Cybersecurity researchers have disclosed a new attack technique called Silver SAML that can be successful even in cases where mitigations have been applied aga…

Microsoft 365

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Alerts

Debian: DSA-5774-1: ruby-saml Security Advisory Updates

It was discovered that ruby-saml, a SAML library implementing the client side of a SAML authorization, does not properly verify the signature of the SAML Respo…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian 11: ruby-saml Important DoS Fix CVE-2025-54572 DLA-4288-1

DoS with large SAML responses has been fixed in ruby-saml, a library implementing the client side of SAML authorization for the Ruby interpreter.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Alerts

Debian LTS: DLA-3949-1: ruby-saml Security Advisory Updates

It was discovered that ruby-saml, a library for implementing the client side of a SAML authorization does not properly verify the signature of the SAML Respons…

Linux

Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses
Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses Vulnerabilities

GitLab Addressed Critical SAML Auth Flaw With The Latest Release

A severe SAML authentication vulnerability affected GitLab, which could allow an adversary to bypass SAML…GitLab Addressed Critical SAML Auth Flaw With The Lat…

GitLab

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories

Debian LTS: DLA-1983-1: simplesamlphp security update

It was discovered that in SimpleSAMLphp, an implementation of the SAML 2.0 protocol, it was possible to circumvent XML signature verification on SAML messages.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories

Debian: DSA-4560-1: simplesamlphp security update

It was discovered that in SimpleSAMLphp, an implementation of the SAML 2.0 protocol, it was possible to circumvent XML signature verification on SAML messages.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian LTS DLA-4161-1 critical: SimpleSAMLphp signature confusion risk

A vulnerability has been discovered in SimpleSAMLphp, a framework for authentication, primarily via the SAML protocol. CVE-2025-27773

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian LTS: DLA-3981-1: simplesamlphp Security Advisory Updates

It was discovered that in SimpleSAMLphp, an implementation of the SAML 2.0 protocol, is prone to an XXE vulnerability when loading an (untrusted) XML document.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian: DSA-5822-1: simplesamlphp Security Advisory Updates

It was discovered that in SimpleSAMLphp, an implementation of the SAML 2.0 protocol, is prone to a XXE vulnerability when loading an (untrusted) XML document.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Ubuntu 5066-1: PySAML2 vulnerabili

PySAML2 could be made to accept invalid SAML documents.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories

Debian LTS: DLA-2119-1: python-pysaml2 security upda

It was discovered that pysaml2, a Python implementation of SAML to be used in a WSGI environment, was susceptible to XML signature wrapping attacks, which coul…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories

Debian: DSA-4630-1: python-pysaml2 security upda

It was discovered that pysaml2, a Python implementation of SAML to be used in a WSGI environment, was susceptible to XML signature wrapping attacks, which coul…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

openSUSE Tumbleweed python313-pysaml2 Moderate Update Thread 2026-11524-1

An update for openSUSE Tumbleweed has been released to address three vulnerabilities in the python313-pysaml2 package, enhancing security and mitigating associ…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Ubuntu 4245-1: PySAML2 vulnerabili

PySAML2 could be made to bypass signature verification with arbitrary data.

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

openSUSE rates python3-saml as Moderate for CVE-2017-11427 vulnerability

An update that solves one vulnerability can now be installed.

Linux

The Hacker News
The Hacker News Vulnerabilities

Citrix Patches Critical NetScaler Flaw That Could Enable RCE in SAML Deployments

Citrix has released patches for yet another critical security flaw impacting NetScaler ADC and NetScaler Gateway that could result in remote code execution or …

Citrix

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Vulnerabilities

Citrix NetScaler Vulnerability Is Being Exploited: Check SAML Systems

Citrix has confirmed targeted attacks involving a Citrix NetScaler vulnerability and urged affected customers to update.

Citrix

BleepingComputer
BleepingComputer Vulnerabilities

Citrix patches NetScaler SAML zero-day exploited in attacks

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks…

Citrix

The Hacker News
The Hacker News Breaches & leaks

Fortinet FortiGate Under Active Attack Through SAML SSO Authentication Bypass

Threat actors have begun to exploit two newly disclosed security flaws in Fortinet FortiGate devices, less than a week after public disclosure.Cybersecurity co…

Fortinet

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

SUSE: 2025:01500-1 moderate: opensaml parameter manipulation

* bsc#1239889 Cross-References: * CVE-2025-31335

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories

Debian: DSA-4926-1: lasso security upda

It was discovered that lasso, a library which implements SAML 2.0 and Liberty Alliance standards, did not properly verify that all assertions in a SAML respons…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Fedora 43 lemonldap-ng Update Open Redirect Fix CVE-2026-12804

The Fedora 43 update for lemonldap-ng (version 2.23.2) enhances Web Single Sign On and fixes the CVE-2026-12804 vulnerability regarding an Open Redirect in SAM…

Linux

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities

Debian 11 Lasso Important DoS Arbitrary Code Exec DLA-4397-1

Keane O'Kelley discovered several vulnerabilities in lasso, a library implementing Liberty Alliance and SAML protocols, which could result in denial of service…

Linux