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Permalink CVE-2026-31982
5.3 MEDIUM
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): None (N)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Passive (P)
  • Vulnerable System Impact Confidentiality (VC): None (N)
  • Vulnerable System Impact Integrity (VI): Low (L)
  • Vulnerable System Impact Availability (VA): Low (L)
  • Subsequent System Impact Confidentiality (SC): Low (L)
  • Subsequent System Impact Integrity (SI): Low (L)
  • Subsequent System Impact Availability (SA): Low (L)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Attack Requirement (MAT): None (N)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Passive (P)
  • Modified Vulnerable System Impact Confidentiality (MVC): None (N)
  • Modified Vulnerable System Impact Integrity (MVI): Low (L)
  • Modified Vulnerable System Impact Availability (MVA): Low (L)
  • Modified Subsequent System Impact Confidentiality (MSC): Low (L)
  • Modified Subsequent System Impact Integrity (MSI): Low (L)
  • Modified Subsequent System Impact Availability (MSA): Low (L)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
created 6 days, 2 hours ago Activity log
  • Created suggestion 6 days, 2 hours ago
Open Redirect in SAML Single Sign-On in Guardian/CMC before 26.2.0

An Open Redirect vulnerability was discovered in the SAML Single Sign-On functionality due to insufficient validation of a user-controlled redirection parameter. An unauthenticated attacker can craft a request to the SAML sign-in endpoint and poison the cached SAML redirection for other users who subsequently initiate SAML Single Sign-On, enabling phishing and credential-theft attacks, as well as disrupting SAML authentication for all affected users.

Affected products

CMC
  • <26.2.0
Guardian
  • <26.2.0

Matching in nixpkgs

pkgs.cmc

Manages SSH ControlMaster sessions

pkgs.cmctl

Command line utility to interact with a cert-manager instalation on Kubernetes

pkgs.scmccid

PCSC drivers for linux, for the SCM SCR3310 v2.0 card and others

pkgs.adguardian

Terminal-based, real-time traffic monitoring and statistics for your AdGuard Home instance

pkgs.pcmciaUtils

None

  • nixos-unstable 018
    • nixpkgs-unstable 018
    • nixos-unstable-small 018
  • nixos-26.05 018
    • nixos-26.05-small 018
    • nixpkgs-26.05-darwin 018

pkgs.pcmciautils

None

  • nixos-unstable 018
    • nixpkgs-unstable 018
    • nixos-unstable-small 018
  • nixos-26.05 018
    • nixos-26.05-small 018
    • nixpkgs-26.05-darwin 018

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