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TI-2026-42317 Aliases CVE-2026-59151GHSA-h8m9-jgf8-vwvp

Prowler: SAML Domain Claiming Enables Cross-Tenant Account Takeover

Priority HIGH 74CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00534 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed prowler (prowler-cloud): 5.30.3prowler-cloud (PyPI): 5.30.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
prowler-cloudprowlerbefore 5.30.35.30.3Patch availableCNA
—prowler-cloud (PyPI)before 5.30.35.30.3Patch availableGHSA-h8m9-jgf8-vwvp
  • prowler Vendorprowler-cloud Affected before 5.30.3 Fixed in 5.30.3 Patch available CNA
  • prowler-cloud (PyPI) Vendor— Affected before 5.30.3 Fixed in 5.30.3 Patch available GHSA-h8m9-jgf8-vwvp

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:prowler:prowler:*:*:*:*:*:*:*:*before 5.30.3VulnerableProwler
  • cpe:2.3:a:prowler:prowler:*:*:*:*:*:*:*:* Versions before 5.30.3 Vulnerable ·Prowler

Remediation

  • Fix · CNA prowler (prowler-cloud) Fixed in 5.30.3
  • Fix · GHSA-h8m9-jgf8-vwvp prowler-cloud (PyPI) Fixed in 5.30.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59151
  2. 2026-10-03 Alias added: GHSA-h8m9-jgf8-vwvp

References

Exploit 1

Patch 2

Advisory 1

Other 4

  • TI-2026-51398 Prowler: Server-Side Request Forgery (SSRF) in Lighthouse Provider CVSS 3.1HIGH 7.6
  • TI-2026-51397 Prowler: RCE on Prowler App workers via kubeconfig auth-provider cmd-path CVSS 3.1CRITICAL 9.9
  • TI-2026-51396 Prowler: Stored XSS in HTML reports through unescaped cloud resource tags CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences