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CVE-2026-3118— Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer hub orchestrator plugin

Quick assessment

Affected
Red Hat Red Hat Developer Hub 1.8
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.

Red Hat Developer Hub是美国红帽（Red Hat）公司的一款企业级内部开发者平台。 Red Hat Developer Hub存在SQL注入漏洞，该漏洞源于GraphQL查询处理中输入验证不足，可能允许经过身份验证的用户注入特制输入导致后端查询处理中断，引发应用程序崩溃和重启，从而导致平台范围的拒绝服务。

CVSS 6.5 · Medium EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 2

VendorProduct Version RangeStatus
Red Hat Red Hat Developer Hub 1.8 1776784286< * unaffected
Red Hat Red Hat Developer Hub 1.9 1777903262< * unaffected
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I. Basic Information for CVE-2026-3118

Vulnerability Information
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Vulnerability Title
Rhdh: graphql injection leading to platform-wide denial of service (dos) in rh developer hub orchestrator plugin
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw was identified in the Orchestrator Plugin of Red Hat Developer Hub (Backstage). The issue occurs due to insufficient input validation in GraphQL query handling. An authenticated user can inject specially crafted input into API requests, which disrupts backend query processing. This results in the entire Backstage application crashing and restarting, leading to a platform-wide Denial of Service (DoS). As a result, legitimate users temporarily lose access to the platform.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Developer Hub SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Developer Hub是美国红帽（Red Hat）公司的一款企业级内部开发者平台。 Red Hat Developer Hub存在SQL注入漏洞，该漏洞源于GraphQL查询处理中输入验证不足，可能允许经过身份验证的用户注入特制输入导致后端查询处理中断，引发应用程序崩溃和重启，从而导致平台范围的拒绝服务。
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
Red Hat Red Hat Developer Hub 1.8 1776784286 ~ * cpe:/a:redhat:rhdh:1.8::el9
Red Hat Red Hat Developer Hub 1.9 1777903262 ~ * cpe:/a:redhat:rhdh:1.9::el9

II. Public POCs for CVE-2026-3118

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III. Intelligence Information for CVE-2026-3118

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Vendor Advisories for CVE-2026-3118 (1)

Same Patch Batch · Red Hat · 2026-02-25 · 3 CVEs total

CVE-2026-26103 7.1 HIGH Udisks: missing authorization check allows unprivileged users to restore luks headers via
CVE-2026-26104 5.5 MEDIUM Udisks: missing authorization check allows unprivileged users to back up luks headers via

IV. Related Vulnerabilities

Same vendor: Red Hat
Same weakness: CWE-89

V. Comments for CVE-2026-3118

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