External risk intelligence

Apache MyFaces SSRF and LFI Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-68536

Apache MyFaces is a JavaServer Faces framework commonly used to build public-facing web applications. Because it handles HTTP requests and processes user input directly within the web application layer, vulnerabilities such as SSRF and LFI in this component are often reachable via public internet-facing web interfaces in standard deployments.

Server-Side Request Forgery

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in Apache MyFaces Core, a component used in JavaServer Faces applications. This issue allows for Server-Side Request Forgery and Local File Inclusion, meaning an attacker could potentially manipulate the application to access internal resources or send requests on behalf of the server. The main concern is confirming relevance and exposure, as this could impact applications that rely on this component.

Attackers can misuse web applications.
It's a critical flaw in common web technology.
Verify if our systems use this component.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending specially crafted requests to a web application that uses a vulnerable version of Apache MyFace Core. This could allow them to trick the server into making unintended requests to internal or external resources, or even read sensitive files from the server's file system.

Attacker can reach the application externally.
Vulnerability triggers on unauthenticated requests.
Enables sensitive file access and server interaction.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to exploit Server-Side Request Forgery and Local File Inclusion flaws in Apache MyFace Core. When supported by the advisory, this could lead to unauthorized access to sensitive information or system resources.

Sensitive server data exposure.
Malicious requests or file path manipulation.
Unauthorized access to system files.

Operational Fix

Recommended remediation, mitigation, and detection steps

Given the Server-Side Request Forgery and Local File Inclusion vulnerabilities in Apache MyFace Core, platform or application teams responsible for Java web applications should take the lead. The initial step is to identify all instances of Apache MyFace Core across the environment, confirm their external reachability and business criticality, and then assign ownership to the accountable team for remediation planning.

Platform/Application teams own remediation.
Verify external reachability and criticality first.
Plan upgrades based on identified risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is Apache MyFaces Core?

Apache MyFaces Core is a widely used Java-based framework designed for building interactive, component-oriented web user interfaces. It serves as the foundation for many JavaServer Faces (JSF) applications, managing how users interact with web pages and how the server processes those inputs. Because it sits at the intersection of user input and server logic, it is a critical component for rendering data in enterprise web portals and business applications.

How does CVE-2026-68536 impact security?

This vulnerability involves two common security weaknesses: Server-Side Request Forgery (SSRF) and Local File Inclusion (LFI), classified as CWE-918. In plain terms, the flaw allows an attacker to manipulate the application into performing unauthorized actions. They can trick the server into sending requests to internal systems that are otherwise hidden or force the application to read and disclose sensitive files directly from the server's local file system.

Does any specific user action trigger this bug?

No, user interaction or authentication is not required to trigger this vulnerability. An attacker can exploit it by sending specially crafted, unauthenticated HTTP requests directly to the web application. Simple, legitimate use of the application by authorized users does not trigger the vulnerability; rather, it requires the malicious crafting of inputs designed to bypass standard application processing and force the server to execute unintended commands or file reads.

Is my system at risk according to Halo Surface Signal?

Halo Surface Signal flags this as a significant concern because Apache MyFaces is frequently deployed in public-facing web applications. Since the framework handles incoming HTTP requests at the web application layer, any interface reachable from the public internet may be exposed to these SSRF and LFI attacks. Systems that are isolated on internal networks without public exposure have a lower risk profile compared to internet-facing services.

What is the first step to address this CVE?

The immediate priority is to identify all software instances within your environment that rely on the affected versions of Apache MyFaces Core. Once you have an inventory of these applications, assess which ones are accessible over the network. If your systems are running older or unsupported versions, you should prioritize planning an upgrade to one of the patched versions—such as 2.3.12, 3.0.4, 4.0.4, or 4.1.4—as specified in the official advisory.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.