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  3. Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, and Privilege Escalation Flaws
Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, and Privilege Escalation Flaws
NEWS

Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, and Privilege Escalation Flaws

A coordinated wave of critical security patches landed this week from Ivanti, Fortinet, SAP, VMware, and n8n. Topping the list is CVE-2026-8043 in Ivanti...

Dylan H.

News Desk

May 18, 2026
6 min read

Five major enterprise vendors released critical security patches this week, addressing a combined total of vulnerabilities spanning remote code execution, SQL injection, authentication bypass, and privilege escalation. Security teams should prioritize these patches, particularly given the high CVSS scores and the track record of rapid exploitation after vendor disclosure.

Ivanti Xtraction — CVE-2026-8043 (CVSS 9.6)

The highest-severity vulnerability in this week's batch affects Ivanti Xtraction, the company's business intelligence and reporting platform.

CVE-2026-8043 is classified as an external file control vulnerability that allows attackers to perform unauthorized file read and write operations, potentially enabling client-side attacks against users of the Xtraction interface. With a CVSS score of 9.6, this is rated critical.

DetailValue
CVECVE-2026-8043
CVSS Score9.6 (Critical)
TypeExternal File Control
ImpactUnauthorized file read/write, client-side attacks
Fixed VersionXtraction 2026.2

Ivanti has faced significant scrutiny in 2026 following multiple zero-day exploitations across its Connect Secure, EPMM, and Neurons product lines. CVE-2026-8043 has not been confirmed as exploited in the wild at time of writing, but Ivanti vulnerabilities have historically entered active exploitation within days of disclosure.

Action: Update Xtraction to version 2026.2 immediately. If patching cannot be completed within 24 hours, consider taking the Xtraction interface offline or restricting access to trusted networks only.

Fortinet — Dual Critical RCE Vulnerabilities

Fortinet patched two critical flaws across FortiAuthenticator and FortiSandbox, both enabling unauthenticated or unauthorized code execution.

FortiAuthenticator — CVE-2026-44277 (CVSS 9.1)

An improper access control flaw in FortiAuthenticator allows unauthenticated remote attackers to execute arbitrary code or commands.

DetailValue
CVECVE-2026-44277
CVSS Score9.1 (Critical)
TypeImproper Access Control / Unauthenticated RCE
Fixed Versions6.5.7, 6.6.9, 8.0.3

FortiAuthenticator is widely deployed as a multi-factor authentication and certificate management solution in enterprise environments. Unauthenticated RCE on an MFA system could allow attackers to bypass authentication for all downstream services protected by FortiAuthenticator.

FortiSandbox — CVE-2026-26083 (CVSS 9.1)

A missing authorization flaw in the FortiSandbox web UI allows unauthorized attackers to execute arbitrary code via a crafted web request.

DetailValue
CVECVE-2026-26083
CVSS Score9.1 (Critical)
TypeMissing Authorization / Web UI RCE
AffectedFortiSandbox (all variants), Cloud, PaaS
Fixed Versions4.4.9, 5.0.2 (on-premises); Cloud 5.0.6; PaaS 4.4.9/5.0.2

Action: Apply FortiAuthenticator and FortiSandbox patches on an emergency basis. FortiAuthenticator's role in authentication infrastructure makes this particularly urgent — exploitation could silently undermine MFA protections across the organization.

SAP — Dual Critical SQLi and Authentication Flaws

SAP shipped two critical patches for its S/4HANA enterprise platform, both rated CVSS 9.6.

CVE-2026-34260 — SQL Injection in S/4HANA

A SQL injection vulnerability in SAP S/4HANA allows authenticated users to execute arbitrary SQL queries, potentially exposing sensitive business data, financial records, and operational information stored in the SAP database.

CVE-2026-34263 — Missing Authentication for Code Execution

A missing authentication check in SAP S/4HANA allows unauthenticated attackers to execute arbitrary code by uploading a malicious configuration file. This is the more severe of the two flaws from an impact perspective.

CVECVSSType
CVE-2026-342609.6SQL Injection — data exposure
CVE-2026-342639.6Missing Auth — unauthenticated RCE via config upload

SAP S/4HANA underpins financial, logistics, and human resources operations for thousands of enterprises globally. Unauthenticated code execution against an SAP system can provide attackers with access to sensitive financial data, the ability to manipulate business processes, and a foothold in environments with high-value business intelligence.

Action: Apply SAP Security Notes for both CVEs immediately. SAP vulnerabilities are attractive to financially motivated threat actors; treat these as high-urgency patches.

VMware Fusion — CVE-2026-41702 (CVSS 7.8)

A TOCTOU (Time-of-Check to Time-of-Use) race condition in a SETUID binary in VMware Fusion enables local privilege escalation to root on macOS.

DetailValue
CVECVE-2026-41702
CVSS Score7.8 (High)
TypeTOCTOU / Local Privilege Escalation
ImpactLocal user → root
Fixed VersionVMware Fusion 26H1

While local privilege escalation requires pre-existing access to the machine, in enterprise environments where Fusion is used on developer or analyst workstations, this could be chained with initial access exploits to achieve full system compromise.

Action: Update VMware Fusion to version 26H1. This is lower urgency than the RCE vulnerabilities above, but should be included in the next patch cycle.

n8n — Five Critical RCE Vulnerabilities (All CVSS 9.4)

The automation platform n8n received patches for five separate critical vulnerabilities, all rated CVSS 9.4, covering prototype pollution and code injection flaws that enable remote code execution.

CVEType
CVE-2026-42231Prototype Pollution / RCE
CVE-2026-42232Prototype Pollution / RCE
CVE-2026-44791Code Injection / RCE
CVE-2026-44789Code Injection / RCE
CVE-2026-44790Code Injection / RCE

Fixed versions: 1.123.32+, 2.17.4+, 2.18.1+, 2.20.7+, 2.22.1+

n8n has been a recurring target in 2026. CISA added a prior critical n8n RCE flaw (CVE-2025-68613) to the Known Exploited Vulnerabilities catalog in March, citing active exploitation across thousands of exposed instances. Given this history, these five new vulnerabilities should be treated as high-probability near-term exploitation targets.

n8n instances are frequently exposed to the internet for webhook integrations, making them accessible to opportunistic scanners. Any n8n deployment should be on the latest patched version and, if possible, should not be directly internet-facing.

Action: Update n8n to the latest patched version matching your branch. If running an older version that does not have a patched release, assess whether temporary isolation is feasible while planning an upgrade.

Patch Priority Summary

PriorityVendor / CVEReason
Critical — Patch NowIvanti CVE-2026-8043CVSS 9.6, Ivanti has rapid exploitation history
Critical — Patch NowFortinet CVE-2026-44277CVSS 9.1, unauthenticated RCE on MFA infrastructure
Critical — Patch NowSAP CVE-2026-34263CVSS 9.6, unauthenticated code execution
Critical — Patch Nown8n CVE-2026-42231–44790CVSS 9.4 ×5, prior n8n CVE actively exploited
High — This CycleFortinet CVE-2026-26083CVSS 9.1, FortiSandbox web UI RCE
High — This CycleSAP CVE-2026-34260CVSS 9.6, SQL injection in S/4HANA
Medium — Next CycleVMware CVE-2026-41702CVSS 7.8, local priv esc (requires existing access)

References

  • The Hacker News — Ivanti, Fortinet, SAP, VMware, n8n Patch RCE, SQL Injection, Privilege Escalation Flaws
  • CosmicBytez Labs — CISA Flags n8n RCE Bug as Actively Exploited
  • CosmicBytez Labs — Fortinet Warns of Critical RCE Flaws in FortiSandbox and FortiAuthenticator
  • Ivanti Security Advisory
  • Fortinet PSIRT
#CVE#Fortinet#Ivanti#n8n#SAP#VMware#Security Updates#The Hacker News

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