CVE-2026-59151

Description

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.

PUBLISHED Reserved 2026-07-02 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M

Problem types

CWE-287: Improper Authentication

Product status

References

github.com/...rowler/security/advisories/GHSA-h8m9-jgf8-vwvp exploit

github.com/...rowler/security/advisories/GHSA-h8m9-jgf8-vwvp

github.com/prowler-cloud/prowler/pull/11650

github.com/...ommit/bf3b5c2ba713e533014927141b64948c82c8f32e

github.com/...ommit/f5ff30ad175bd2edf02cd28872653c1cda5867b7

github.com/prowler-cloud/prowler/releases/tag/5.30.3

cve.org (CVE-2026-59151)

nvd.nist.gov (CVE-2026-59151)

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