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CVE-2026-28682— Gokapi: Data Leak in Upload Status Stream

Quick assessment

Affected
Forceu Gokapi
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.

Gokapi是Marc Bulling个人开发者的一个轻量级的自托管Firefox发送替代方案。 Gokapi 2.2.3之前版本存在访问控制错误漏洞，该漏洞源于/uploadStatus上的上传状态SSE实现将全局上传状态发布给任何经过身份验证的监听者且包含未限定于请求用户的file_id值，可能导致信息泄露。

CVSS 6.4 · Medium EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-28682

Vulnerability Information
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Vulnerability Title
Gokapi: Data Leak in Upload Status Stream
Source: CVE Program / CVE List V5
Vulnerability Description
Gokapi is a self-hosted file sharing server with automatic expiration and encryption support. Prior to version 2.2.3, the upload status SSE implementation on /uploadStatus publishes global upload state to any authenticated listener and includes file_id values that are not scoped to the requesting user. This issue has been patched in version 2.2.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Gokapi 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gokapi是Marc Bulling个人开发者的一个轻量级的自托管Firefox发送替代方案。 Gokapi 2.2.3之前版本存在访问控制错误漏洞，该漏洞源于/uploadStatus上的上传状态SSE实现将全局上传状态发布给任何经过身份验证的监听者且包含未限定于请求用户的file_id值，可能导致信息泄露。
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
Forceu Gokapi < 2.2.3 -

II. Public POCs for CVE-2026-28682

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III. Intelligence Information for CVE-2026-28682

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Vendor Advisories for CVE-2026-28682 (1)

Other References for CVE-2026-28682 (1)

Same Patch Batch · Forceu · 2026-03-06 · 5 CVEs total

CVE-2026-28683 8.7 HIGH Gokapi: Stored XSS in SVG Hotlinks
CVE-2026-29061 5.4 MEDIUM Gokapi: Privilege escalation via incomplete API-key permission revocation on user rank dem
CVE-2026-29060 5.0 MEDIUM Gokapi: Privilege escalation with auth token
CVE-2026-29084 4.6 MEDIUM Gokapi: CSRF in Login Endpoint

IV. Related Vulnerabilities

Same product: Gokapi
Same vendor: Forceu
Same weakness: CWE-284

V. Comments for CVE-2026-28682

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