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Details of issue NIXPKGS-2026-2162

NIXPKGS-2026-2162
published 6 hours ago
Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover
Permalink CVE-2026-59151
9.6 CRITICAL
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): Low (L)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): Low (L)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
updated 6 hours ago by @LeSuisse Activity log
  • Created suggestion 14 hours ago
  • @LeSuisse accepted 7 hours ago
  • @LeSuisse published on GitHub 6 hours ago
Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover

Prowler is a cloud security platform. Prior to 5.30.3, Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token, and the ACS finish logic in api/src/backend/api/v1/views.py recalculated the tenant from user.email instead of binding token issuance to the validated SAML configuration. An authenticated attacker with a controlled SAML IdP could complete a valid SAML flow for an attacker-controlled domain while asserting an email address from another configured domain, causing a SAMLToken and tenant-scoped JWT to be issued for the wrong tenant and enabling cross-tenant account takeover. This issue is fixed in version 5.30.3.

Affected products

prowler
  • ==< 5.30.3

Matching in nixpkgs

pkgs.prowler

Security tool to perform Cloud Security best practices assessments

Package maintainers

Needs a port to stable.