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[2026.07 Vulnerability Report] Langflow Remote Code Execution Vulnerability (CVE-2026-33017)

CVE-2026-33017 is a critical (CVSS 9.8) unauthenticated remote code execution (RCE) vulnerability in Langflow, an open-source framework for building LLM and RAG pipelines. The flaw exists in the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint, which is designed to allow unauthenticated access for public flows but improperly accepts attacker-controlled data from the request body instead of using server-stored flow definitions. This data is used to construct a Custom Component—an extensible block where users define behavior in Python. The Python code embedded in this component is then executed via `exec()` without any sandboxing or validation, allowing attackers to run arbitrary code on the server with a single HTTP request. Since Langflow stores various cloud provider credentials and API keys, exploitation can escalate beyond server compromise to lateral movement across cloud infrastructures and supply chain attacks. The vulnerability was first publicly disclosed on March 16, 2026, and active exploitation was observed within approximately 20 hours of disclosure. It has been assigned a CVSS v3.1 score of 9.8 (Critical) by the NVD and was added to the CISA KEV catalog on March 25, 2026. Users must immediately upgrade from affected versions (prior to 1.9.0) to version 1.9.0 or later. — 1. Overview CVE-2026-33017 is a Critical-severity remote code execution (RCE) vulnerability discovered in Langflow, an open-source framework that allows users to visually configure LLM and RAG (Retrieval-Augmented Generation) pipelines. This vulnerability occurs in the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint, which allows unauthenticated access for building public flows. By design, this endpoint should only use flow definitions stored on the server; however, in the actual implementation, it accepts the attacker-controlled `data` field included in the request body as-is. This data is used to configure Custom Components, which allow users to define behaviors directly using Python code; the Python code contained within these components is executed via `exec()` without any separate sandbox or validation. As a result, an attacker can execute arbitrary code on the server with a single HTTP request, without valid credentials. Langflow is an orchestration platform that connects AI models to production data, databases, external services, and internal APIs; by its very nature, it holds a large number of cloud provider credentials and various third-party API keys. Therefore, if this vulnerability is exploited, it could lead not only to server compromise but also to lateral movement into connected cloud infrastructure and supply chain breaches. This vulnerability was first disclosed on March 16, 2026, and actual exploitation was observed approximately 20 hours after disclosure. It was assigned a CVSS v3.1 score of 9.8 (Critical) by the NVD and was added to the CISA KEV catalog on March 25, 2026.Affected versions are those prior to Langflow 1.9.0, and the vendor and security advisories recommend immediately updating to version 1.9.0 or later. — 2. Attack Vector CVE-2026-33017 is an unauthenticated remote code execution vulnerability occurring in Langflow’s public flow build endpoint: POST /api/v1/build_public_tmp/{flow_id}/flow. Although this endpoint is designed to allow the building of public flows without authentication, in vulnerable versions, it accepts attacker-controlled data contained in the `data` field of the request body as-is, rather than using the flow definition stored on the server. Below is the actual code for the vulnerable endpoint, which shows that it directly receives the `data` parameter from the request body. @router.post(“/build_public_tmp/{flow_id}/flow”) async def build_public_tmp( *, flow_id: uuid.UUID, data: Annotated[FlowDataRequest | None, Body(embed=True)] = None, # ATTACKER CONTROLLED request: Request, # … NO Depends(get_current_active_user) — MISSING AUTH … ): “””Build a public flow without requiring authentication.””” client_id = request.cookies.get(“client_id”) owner_user, new_flow_id = await verify_public_flow_and_get_user(flow_id=flow_id, client_id=client_id) job_id Read more about [2026.07 Vulnerability Report] Langflow Remote Code Execution Vulnerability (CVE-2026-33017)[…]

[2026.07 Vulnerability Report] Windows Kernel-Mode Driver UAF (CVE-2026-58602)

CVE-2026-58602 is a Use-After-Free (UAF) vulnerability in the Windows Kernel-Mode Driver that allows a local attacker with low privileges to escalate to SYSTEM-level access on Windows 11 and Windows Server 2025. The flaw stems from improper memory management in kernel-mode driver handling, where a previously freed memory object can be re-referenced via a dangling pointer, enabling arbitrary code execution in the kernel context. Microsoft addressed this vulnerability in the July 2026 Patch Tuesday security update (July 14, 2026), and immediate patching is strongly recommended. The MONITORAPP TA team is actively monitoring attack campaigns exploiting this class of vulnerability, particularly in the context of BYOVD (Bring Your Own Vulnerable Driver) attack chains targeting EDR solutions. — 1. Overview Source: Microsoft Security Response Center (MSRC) CVE-2026-58602 is a Use-After-Free (UAF) memory vulnerability discovered in a Microsoft Windows kernel-mode driver; it is a critical vulnerability that allows a local attacker with low privileges to achieve privilege escalation to the SYSTEM level. This vulnerability stems from a flaw in the kernel-mode driver’s memory management process that causes a dangling pointer—a reference to a memory object that has already been freed. An attacker could exploit this to execute arbitrary code in the kernel context or gain SYSTEM privileges, which could lead to a wide range of follow-up attacks, such as forcing the termination of EDR (Endpoint Detection & Response) processes, tampering with security policies, and deploying ransomware. Microsoft released a patch for this vulnerability as part of the July 2026 Patch Tuesday (July 14) security update. Items Details CVE Number CVE-2026-58602 Vulnerability Type Use-After-Free (CWE-416) — Privilege Escalation Affected Products Windows 11 (24H2, 25H2, 26H1) / Windows Server 2025 CVSS 3.1 Score 7.8 (High) Attack Vector Local / Low Privileges / No User Interaction Required Patch Date July 14, 2026 (Patch Tuesday) Exploit Status No publicly known exploits (as of Microsoft’s official announcement) — 2. Attack Type CVE-2026-58602 is a local privilege escalation attack that exploits a memory management flaw in a Windows kernel-mode driver. The attacker first gains access to a low-privileged user account or a malware execution environment. Once an environment for executing code with user privileges (T1190, T1059) is established through phishing emails, malicious attachments, or other exploit chains, the foundation for the attack is complete. After gaining initial access, the attacker sends a specially crafted IOCTL (Input/Output Control) request to the vulnerable kernel-mode driver. During this process, the driver internally allocates and deallocates specific memory objects, but a use-after-free (UAF) vulnerability occurs because references to the deallocated pointers are not completely removed. The attacker overwrites the deallocated memory region with data under their control and then tricks the driver into referencing that region again via the dangling pointer. At this point, the manipulated function pointer is executed in the kernel context, allowing the attacker’s code to run with kernel privileges. (T1068 — Exploitation for Privilege Escalation). An attacker who successfully gains kernel privileges can use the control granted by the SYSTEM account to force-terminate EDR processes (T1562), install a kernel-level rootkit (T1014), or carry out follow-up attacks such as deploying ransomware or information-stealing malware. In particular, a similar kernel privilege escalation technique is being used as a key step in the BYOVD (Bring Your Own Vulnerable Driver) attack chain, which surged in the first half of 2026. Example of an attack packet # 공격자: 낮은 권한 프로세스에서 취약 드라이버 IOCTL 전송 DeviceIoControl( hDevice = \.VulnDriver, // 취약한 커널 모드 드라이버 핸들 dwIoControlCode = 0x222084, // UAF 트리거 Read more about [2026.07 Vulnerability Report] Windows Kernel-Mode Driver UAF (CVE-2026-58602)[…]

[2026.07 Vulnerability Report] WP2Shell (CVE-2026-63030, CVE-2026-60137)

This vulnerability is a “Route Confusion and SQL Injection” vulnerability found in WordPress. An attacker may attempt to carry out an attack by sending a JSON request containing the syntax of a malicious SQL injection attack to the /wp-json/batch/v1 endpoint, exploiting incorrect sub-request handling logic. The security patch for this vulnerability was released on July 17, 2026, and the AIWAF product detects it using SQL injection-related patterns. — 1. Overview WordPress is an open-source content management system (CMS) that powers a significant portion of the world’s websites. With its vast ecosystem of themes and plugins, as well as its ease of customization, it helps users quickly build and operate a wide variety of sites, ranging from blogs to corporate websites. This report summarizes the analysis of the WP2Shell vulnerabilities—CVE-2026-63030 and CVE-2026-60137—that were discovered in this system. — 2. Attack Type Dubbed “WP2Shell,” this vulnerability is a Remote Code Execution (RCE) vulnerability found in the default WordPress environment. It involves two interlinked CVE vulnerabilities that work together to execute malicious commands. CVE-2026-63030 is a path confusion vulnerability in the REST API of the default WordPress environment. The /wp-json/batch/v1 endpoint in WordPress can accept JSON-formatted REST sub-requests for validation and execution-related REST sub-requests in JSON format. If an error occurs in one sub-request, the handler processing that request shifts the values within the array where those requests are stored; as a result, the subsequent sub-request is executed within the handler and authorized context of the previous sub-request. An attacker can exploit this by inserting a sub-request designed to trigger an error, thereby causing the subsequent sub-request to execute without validation. Attack Request: POST /wp-json/batch/v1 HTTP/1.1 Host: www.test.com Content-Type: application/json Accept: application/json { “validation”: “normal”, “requests”: [ { “path”: “/wp/v2/posts”, “method”: “GET” }, { “path”: “://invalid-url”, “method”: “GET” }, { “path”: “/wp/v2/posts”, “method”: “GET” } ] } CVE-2026-60137 is an SQL injection vulnerability that occurs in the default WordPress environment. An attacker can exploit this vulnerability by sending and executing a malicious SQL query through the `author_exclude` parameter exposed in the REST API. However, this vulnerability previously required authentication to access the endpoint supporting this parameter; this requirement can be bypassed by exploiting the CVE-2026-63030 vulnerability. Final Attack Request: POST /wp-json/batch/v1 HTTP/1.1 Host: www.test.com Content-Type: Read more about [2026.07 Vulnerability Report] WP2Shell (CVE-2026-63030, CVE-2026-60137)[…]

[2026.07] Threat Intelligence Report

Status of High-Risk Vulnerabilities No. Vulnerability No. (CVE) Content CVSS Risk Level 1CVE-2026-41283OpenStack Mistral Unauthenticated RCE9.9CRITICAL 2CVE-2026-47647Microsoft Dynamics 365 Access Control Privilege Escalation9.9CRITICAL 3CVE-2026-56274Flowise Custom MCP Server OS Command Injection RCE9.9CRITICAL 4CVE-2026-8206Kirki WordPress Plugin Account Takeover 9.8CRITICAL 5CVE-2026-47291Windows HTTP.sys Integer Overflow RCE9.8CRITICAL 6CVE-2026-25089Fortinet FortiSandbox OS Command Injection RCE9.8CRITICAL 7CVE-2026-8025MOSK CBS Platform SQL Injection9.8CRITICAL 8CVE-2026-7486Netcad E-İmar Read more about [2026.07] Threat Intelligence Report[…]

[2026.06] Threat Intelligence Report

Status of High-Risk Vulnerabilities No. Vulnerability No. (CVE) Content CVSS Risk Level 1CVE-2026-20182Cisco Catalyst SD-WAN Controller Authentication Bypass10CRITICAL 2CVE-2026-43898SandboxJS Sandbox Escape RCE10CRITICAL 3CVE-2026-45102OneUptime Sandbox Escape RCE9.9CRITICAL 4CVE-2026-0300Palo Alto Networks PAN-OS User-ID Authentication Portal 9.8CRITICAL 5CVE-2026-8181WordPress Burst Statistics Plugin Authentication Bypass9.8CRITICAL 6CVE-2026-34187Pandora FMS SQL Injection9.8CRITICAL 7CVE-2026-44183Cleanuparr Authentication Bypass9.8CRITICAL 8CVE-2026-24207NVIDIA Triton Inference Server Authentication Bypass9.8CRITICAL 9CVE-2026-33278NLnet Labs Read more about [2026.06] Threat Intelligence Report[…]

[2026.06 Vulnerability Report] Oracle PeopleSoft PeopleTools RCE (CVE-2026-35273)

Oracle PeopleSoft PeopleTools is a widely deployed Enterprise Resource Planning (ERP) platform used by universities, hospitals, and government agencies worldwide to manage HR, payroll, and student records. CVE-2026-35273 is a critical zero-day vulnerability in the PeopleTools Environment Management Hub (PSEMHUB) component, allowing an unauthenticated remote attacker to achieve full OS-level code execution by chaining a Read more about [2026.06 Vulnerability Report] Oracle PeopleSoft PeopleTools RCE (CVE-2026-35273)[…]

[2026.06 Vulnerability Report] SessionReaper: Adobe Commerce PHP Object Injection

This vulnerability is a ‘PHP Object Injection’ vulnerability discovered in Adobe Commerce (Magento). Attackers exploit the fact that the ServiceInputProcessor component attempts deserialization without validation or inspection to send serialized malicious PHP objects to vulnerable endpoints for execution. A security patch for this vulnerability was released in September 2025, and our AIWAF products plan to Read more about [2026.06 Vulnerability Report] SessionReaper: Adobe Commerce PHP Object Injection[…]

[2026.06 Vulnerability Report] HTTP/2 Bomb Server Overload DoS (CVE-2026-49975)

CVE‑2026‑49975, known as “HTTP/2 Bomb,” is a Denial of Service (DoS) vulnerability that leads to severe server overload during HTTP/2 request processing. Attackers can exploit the intersection of HPACK header compression and HTTP/2 flow control to trigger massive memory expansion with minimal network traffic. If successfully exploited, this vulnerability can cause a rapid spike in Read more about [2026.06 Vulnerability Report] HTTP/2 Bomb Server Overload DoS (CVE-2026-49975)[…]

[2026.05] Threat Intelligence Report

Status of High-Risk Vulnerabilities No. Vulnerability No. (CVE) Content CVSS Risk Level 1CVE-2026-22557UniFi Network Application Path Traversal10CRITICAL 2CVE-2026-21628Astroid Framework Malicious File Upload10CRITICAL 3CVE-2026-33937Handlebars Remote Code Execution9.8CRITICAL 4CVE-2026-32767SiYuan SQL Injection9.8CRITICAL 5CVE-2026-0770Langflow Remote Code Execution9.8CRITICAL 6CVE-2026-30457Bludit CMS Remote Code Execution9.8CRITICAL 7CVE-2026-1115parisneo/lollms Cross-Site Scripting9.6CRITICAL 8CVE-2026-33017Langflow Remote Code Execution9.3CRITICAL 9CVE-2026-32940SiYuan Cross-Site Scripting9.3CRITICAL 10CVE-2026-32238OpenEMR Command Injection9.1CRITICAL Distribution of Web Application Read more about [2026.05] Threat Intelligence Report[…]

2026.05 – PAN-OS User-ID Authentication Portal Buffer Overflow Vulnerability (CVE-2026-0300)

Palo Alto Networks PAN-OS firewalls are critical infrastructure assets protecting enterprise network perimeters. CVE-2026-0300 is a critical zero-day buffer overflow vulnerability in the User-ID™ Authentication Portal (Captive Portal) service that allows an unauthenticated, remote attacker to execute arbitrary code with root privileges by sending specially crafted packets. With confirmed in-the-wild exploitation by advanced threat actors Read more about 2026.05 – PAN-OS User-ID Authentication Portal Buffer Overflow Vulnerability (CVE-2026-0300)[…]