Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover — GHSA-H8M9-JGF8-VWVP

Summary

## SAML Tenant Binding Enables Cross-Tenant Account Takeover ### Summary Prowler's SAML authentication flow trusted the email domain asserted in a SAMLResponse when deciding which tenant should receive the final token. A malicious tenant with its own SAML configuration and a self-controlled IdP could complete a valid SAML flow for its own configured domain, while asserting an email address from another configured…

Timeline

Published by source

2026-09-11

Risk context

• Reported severity or threat level: critical.
• Reported CVSS score: 9.6 out of 10.
• Reported EPSS value: 0.00322.
• Review exposure for the affected product or family: pip: prowler-cloud.

Product

pip: prowler-cloud

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-H8M9-JGF8-VWVP

Source

GitHub

Vendor

GitHub

Published by source

2026-09-11

Last source activity

2026-09-11

Additional identifiers

CVE-2026-59151

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.