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CVE-2026-14621— FederatedAI FATE OSX Broker QueuePushReqStreamObserver.java QueuePushReqStreamObserver.initEggroll wrong session

Quick assessment

Affected
FederatedAI FATE
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Federated AI Ecosystem FATE是Federated AI Ecosystem组织的一个联邦学习框架。 Federated AI Ecosystem FATE 2.2.0及之前版本存在会话机制问题漏洞，该漏洞源于OSX Broker组件中QueuePushReqStreamObserver.initEggroll函数的参数（rollSiteSessionId/dstRole/dstPartyId）操作问题，可能导致数据元素暴露到错误会话。

CVSS 3.1 · Low EPSS 0.36% · P28

Affected Version Matrix 3

VendorProduct Version RangeStatus
FederatedAI FATE 2.0 affected
2.1 affected
2.2.0 affected
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I. Basic Information for CVE-2026-14621

Vulnerability Information
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Vulnerability Title
FederatedAI FATE OSX Broker QueuePushReqStreamObserver.java QueuePushReqStreamObserver.initEggroll wrong session
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in FederatedAI FATE up to 2.2.0. This affects the function QueuePushReqStreamObserver.initEggroll of the file java/osx/osx-broker/src/main/java/org/fedai/osx/broker/grpc/QueuePushReqStreamObserver.java of the component OSX Broker. Such manipulation of the argument rollSiteSessionId/dstRole/dstPartyId leads to exposure of data element to wrong session. The attack can be executed remotely. A high complexity level is associated with this attack. It is indicated that the exploitability is difficult. The exploit has been disclosed to the public and may be used. The pull request to fix this issue awaits acceptance.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对错误会话暴露数据元素
Source: CVE Program / CVE List V5
Vulnerability Title
Federated AI Ecosystem FATE 会话机制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Federated AI Ecosystem FATE是Federated AI Ecosystem组织的一个联邦学习框架。 Federated AI Ecosystem FATE 2.2.0及之前版本存在会话机制问题漏洞，该漏洞源于OSX Broker组件中QueuePushReqStreamObserver.initEggroll函数的参数（rollSiteSessionId/dstRole/dstPartyId）操作问题，可能导致数据元素暴露到错误会话。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
FederatedAI FATE 2.0 cpe:2.3:a:federatedai:fate:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-14621

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III. Intelligence Information for CVE-2026-14621

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Patches & Fixes for CVE-2026-14621 (1)

Security Blog Posts for CVE-2026-14621 (1)

Other References for CVE-2026-14621 (1)

IV. Related Vulnerabilities

Same weakness: CWE-488

V. Comments for CVE-2026-14621

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