Security readout for executives and security teams
Plain-English summary
A network-based, unauthenticated server-side request forgery flaw affects Microsoft Entra ID Entitlement Management. A successful attacker could make the service issue unintended requests and impersonate trusted interactions. The supplied CVSS assessment indicates potentially severe confidentiality, integrity, and availability consequences, but the available bundle does not describe the exact attack path or affected versions.
Executive priority
Treat this as an urgent identity-platform review because the supplied severity is critical and exploitation requires neither authentication nor user action. Assign identity and cloud-security owners immediately. Confirm applicability and implement Microsoft’s remediation promptly. Do not represent compromise as confirmed: the supplied sources show neither active exploitation nor inclusion in CISA KEV.
Technical view
CVE-2026-35431 is classified as CWE-918 SSRF with CVSS 3.1 score 10.0: network-accessible, low complexity, no privileges, and no user interaction. Scope changes, with high confidentiality, integrity, and availability impacts. Microsoft categorizes the result as spoofing. Product version boundaries and technical exploitation prerequisites are not specified in the supplied evidence.
Likely exposure
Organizations using Microsoft Entra ID Entitlement Management should treat exposure as possible until Microsoft’s advisory and tenant configuration confirm otherwise. The source bundle identifies Microsoft Entra but supplies no affected version range, CPE, deployment qualifiers, or configuration prerequisites. Organizations not using Entitlement Management are less likely to be directly exposed.
Exploitation context
The bundle provides no evidence of active exploitation, and the CVE is not identified as CISA KEV. The CVSS vector records exploit maturity as unproven. Nevertheless, unauthenticated network reachability, low complexity, and potential cross-scope impact make rapid assessment appropriate. No public exploit details or observed attack indicators are included.
Researcher notes
Key missing evidence includes affected versions, vulnerable request flow, reachable destinations, authentication context, tenant prerequisites, indicators, and remediation mechanics. The supplied record describes SSRF producing spoofing, while the CVSS vector claims cross-scope high impact across all three security objectives. Validate those impact assumptions against the full Microsoft advisory before developing detection logic or exposure conclusions.
Mitigation direction
- Review Microsoft’s CVE advisory for current remediation and applicability guidance.
- Apply Microsoft’s prescribed remediation within an emergency change window where applicable.
- Inventory tenants using Entra ID Entitlement Management and identify exposed integrations.
- Restrict unnecessary service connectivity and trust relationships while applicability remains unresolved.
- Increase monitoring for anomalous entitlement activity and unexpected service-originated network requests.
Validation and detection
- Confirm whether each Entra tenant uses Entitlement Management.
- Record Microsoft’s stated affected scope and compare it with tenant configurations.
- Verify Microsoft’s prescribed remediation is applied wherever applicable.
- Review relevant identity and network telemetry for unexplained service-originated requests.
- Recheck Microsoft’s advisory for revisions after the bundle’s August 14, 2026 update.
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-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-35431 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
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
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:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C3.96microsoftVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
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
- Microsoft Entra ID Entitlement Management Spoofing VulnerabilityCVE reference, microsoft · vendor-advisory, patch
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.
CWE mapping pending import
This CVE carries a CWE mapping that will resolve to a full Glexia CWE intelligence page after the official CWE import is complete.