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CVE-2026-81421— ddfourtwo sentry-selfhosted-mcp raw_sentry_api server-side request forgery

Quick assessment

Affected
ddfourtwo sentry-selfhosted-mcp
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 ddfourtwo sentry-selfhosted-mcp 0.4.0 中发现了一个安全漏洞。受影响的是组件 中的一个未知函数。对参数 的操作会导致服务器端请求伪造（SSRF）漏洞。该攻击可远程发起。利用该漏洞的代码已公开，可能被用于发动攻击。项目方已通过问题报告提前获知此问题，但尚未作出回应。

CVSS 7.3 · High
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I. Basic Information for CVE-2026-81421

Vulnerability Information
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Vulnerability Title
ddfourtwo sentry-selfhosted-mcp raw_sentry_api server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in ddfourtwo sentry-selfhosted-mcp 0.4.0. The affected element is an unknown function of the component raw_sentry_api. The manipulation of the argument endpoint results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
ddfourtwo sentry-selfhosted-mcp 0.4.0 cpe:2.3:a:ddfourtwo:sentry-selfhosted-mcp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-81421

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6985 chars
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III. Intelligence Information for CVE-2026-81421

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Security Blog Posts for CVE-2026-81421 (1)

Other References for CVE-2026-81421 (3)

IV. Related Vulnerabilities

Same weakness: CWE-918

V. Comments for CVE-2026-81421

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