PT-2026-57261 · Prowler Cloud · Prowler

Published 2026-07-10 · Updated 2026-07-10 · CVE-2026-59151

NVD

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-59151

Affected Products

Prowler

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-59151 · Security Note
• https://github.com/prowler-cloud/prowler/releases/tag/5.30.3 · Note
• https://github.com/prowler-cloud/prowler/commit/bf3b5c2ba713e533014927141b64948c82c8f32e · Note
• https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvp · Note
• https://github.com/prowler-cloud/prowler/pull/11650 · Note
• https://github.com/prowler-cloud/prowler/commit/f5ff30ad175bd2edf02cd28872653c1cda5867b7 · Note