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CVE-2023-22477— Mercurius is vulnerable to denial of service (DoS) when using subscriptions

Quick assessment

Affected
mercurius-js mercurius
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.

Mercurius是GraphQL适配器Fastify 。 Mercurius 10.5.0之前版本存在安全漏洞，该漏洞源于任何用户通过WebSocket向“/graphql”发送格式错误的数据包，都会遭受拒绝服务攻击。

CVSS 5.3 · Medium EPSS 1.06% · P62

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-22477

Vulnerability Information
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Vulnerability Title
Mercurius is vulnerable to denial of service (DoS) when using subscriptions
Source: CVE Program / CVE List V5
Vulnerability Description
Mercurius is a GraphQL adapter for Fastify. Any users of Mercurius until version 10.5.0 are subjected to a denial of service attack by sending a malformed packet over WebSocket to `/graphql`. This issue was patched in #940. As a workaround, users can disable subscriptions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
Mercurius 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mercurius是GraphQL适配器Fastify 。 Mercurius 10.5.0之前版本存在安全漏洞，该漏洞源于任何用户通过WebSocket向“/graphql”发送格式错误的数据包，都会遭受拒绝服务攻击。
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
mercurius-js mercurius < 10.5.0 -

II. Public POCs for CVE-2023-22477

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III. Intelligence Information for CVE-2023-22477

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Patches & Fixes for CVE-2023-22477 (1)

Vendor Advisories for CVE-2023-22477 (1)

Other References for CVE-2023-22477 (1)

IV. Related Vulnerabilities

Same product: mercurius
Same vendor: mercurius-js
Same weakness: CWE-248

V. Comments for CVE-2023-22477

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