Security readout for executives and security teams
Plain-English summary
Prowler versions before 5.30.3 could issue access tokens to the wrong tenant during SAML login. A logged-in attacker controlling their own SAML identity provider could claim an email domain belonging to another tenant and receive that tenant's token. This creates cross-tenant account takeover risk.
Executive priority
Treat this as urgent for any Prowler environment using SAML. The issue can cross tenant boundaries and compromise confidentiality and integrity, but the supplied evidence does not show active exploitation.
Technical view
The SAML ACS finish path recalculated tenant selection from user.email in the SAMLResponse instead of binding token issuance to the validated SAML configuration. This authentication flaw is CWE-287 with CVSS 9.6, network exploitable, low complexity, low privileges, no user interaction, changed scope, and high confidentiality and integrity impact.
Likely exposure
Prowler deployments running versions before 5.30.3 are affected, especially where SAML SSO and tenant/domain mapping are configured. The provided sources do not clarify separate exposure differences between SaaS, self-hosted, or specific deployment modes.
Exploitation context
The bundle says exploitation requires an authenticated attacker with a controlled SAML IdP and a target domain already configured in Prowler. KEV is false, and no provided source states active exploitation in the wild.
Researcher notes
Focus review on SAML ACS tenant resolution and token issuance. The vulnerable behavior is trusting email-domain claims in the SAMLResponse rather than the validated SAML configuration. Do not assume exploitability beyond Prowler before 5.30.3 from these sources.
Mitigation direction
- Upgrade Prowler to version 5.30.3 or later.
- Review the GitHub security advisory and 5.30.3 release notes.
- If upgrade is delayed, check vendor guidance for supported temporary controls.
- Review SAML tenant/domain configuration for unexpected or stale entries.
Validation and detection
- Inventory Prowler versions and flag anything below 5.30.3.
- Identify deployments with SAML authentication enabled.
- Confirm tenant token issuance is tied to validated SAML configuration after upgrade.
- Review authentication logs for unusual SAML logins across tenant domains.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-59151 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N3.15.8GitHub_MVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/prowler-cloud/prowler/security/advisories/GHSA-h8m9-jgf8-vwvpCVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/prowler-cloud/prowler/pull/11650CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/prowler-cloud/prowler/commit/bf3b5c2ba713e533014927141b64948c82c8f32eCVE reference, GitHub_M · x_refsource_MISC
- https://github.com/prowler-cloud/prowler/commit/f5ff30ad175bd2edf02cd28872653c1cda5867b7CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/prowler-cloud/prowler/releases/tag/5.30.3CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.