CVE-2026-52474: Aiflowy Information Disclosure Flaw

CVE-2026-52474 Overview

CVE-2026-52474 is an information disclosure vulnerability affecting AiFlowy versions 2.1.2 and earlier. The flaw resides in the JobUtil.java file and allows a remote, unauthenticated attacker to obtain sensitive information over the network. The vulnerability is categorized under [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor. Public proof-of-concept material references arbitrary Spring bean invocation as the exploitation path, indicating the affected component exposes internal application state without adequate access controls.

Critical Impact
A remote attacker without authentication can retrieve sensitive information from AiFlowy deployments running version 2.1.2 or earlier by abusing exposed functionality in JobUtil.java.

Affected Products

AiFlowy versions <= 2.1.2

Discovery Timeline

2026-07-21 - CVE-2026-52474 published to the National Vulnerability Database (NVD)
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-52474

Vulnerability Analysis

The vulnerability exists in the JobUtil.java component of AiFlowy. According to the referenced proof-of-concept, the exposed functionality permits arbitrary Spring bean invocation from a network-facing interface. An attacker can query internal application beans and retrieve sensitive information that should not be reachable by unauthenticated users. The confidentiality impact is high, while integrity and availability are not affected, which aligns with an information disclosure primitive rather than a code execution or destructive flaw. The EPSS probability is 0.375% at the 30th percentile as of 2026-07-23, and no exploitation in the wild has been reported.

Root Cause

The root cause is inadequate access control over a utility endpoint that dispatches calls to Spring-managed beans. The JobUtil.java handler accepts attacker-controlled input identifying a bean and method to invoke without validating caller identity or restricting invocation to a safe allow-list. This design decision exposes the application's internal service graph to any remote client.

Attack Vector

Exploitation occurs over the network with no authentication or user interaction. An attacker sends a crafted request that specifies a target Spring bean and method exposed through JobUtil.java. The server invokes the requested bean and returns data derived from internal state. Refer to the GitHub PoC Repository for the exact request format and observed responses.

No verified exploit code is reproduced here. See the linked proof-of-concept for technical details.

Detection Methods for CVE-2026-52474

Indicators of Compromise

Unexpected HTTP requests to AiFlowy endpoints referencing JobUtil handlers or bean invocation parameters.
Access log entries showing unauthenticated callers issuing requests that include Spring bean names or method identifiers.
Outbound responses from AiFlowy containing configuration data, credentials, or internal object state returned to unauthorized clients.

Detection Strategies

Deploy web application firewall rules that inspect requests targeting AiFlowy for parameter names associated with Spring bean invocation.
Correlate access to JobUtil routes with the source IP reputation and authentication status to surface anonymous probing.
Baseline normal AiFlowy request patterns and alert on deviations that include reflective bean or method identifiers.

Monitoring Recommendations

Enable verbose application logging on the AiFlowy job utility routes and forward logs to a central analytics platform.
Monitor response sizes on JobUtil endpoints, as data exfiltration attempts often produce responses larger than legitimate traffic.
Track repeat access from single sources enumerating multiple bean names within short time windows.

How to Mitigate CVE-2026-52474

Immediate Actions Required

Restrict network access to AiFlowy management and job utility endpoints using firewall rules or reverse proxy allow-lists.
Audit AiFlowy deployments for version <= 2.1.2 and prioritize upgrades on internet-exposed instances.
Rotate any credentials, tokens, or secrets that may have been retrievable through the exposed JobUtil.java interface.

Patch Information

As of publication, no fixed version has been listed in the NVD entry. Review the GitHub PoC Repository and the AiFlowy project's release notes for updates addressing JobUtil.java. Upgrade to a release later than 2.1.2 once one is published by the maintainer.

Workarounds

Place AiFlowy behind an authenticated reverse proxy that blocks unauthenticated requests to job utility routes.
Disable or remove the JobUtil invocation handler if it is not required for business operations.
Apply network segmentation so that AiFlowy is not reachable from untrusted networks or the public internet.

bash

# Example nginx snippet restricting access to JobUtil endpoints
location ~* /.*JobUtil.* {
    allow 10.0.0.0/8;
    deny all;
}