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CVE-2026-45776— Open XDMoD has Broken Access Control via Client-Controlled Session Variable

Quick assessment

Affected
ubccr xdmod
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.

Open XDMoD是Center for Computational Research开源的一款用于管理高性能计算资源的开源工具。 Open XDMoD 11.0.3之前版本存在访问控制错误漏洞，该漏洞源于访问控制逻辑缺陷，允许攻击者提交特制的HTTPS POST请求设置用于授权决策的会话变量，可能导致绕过数据访问限制并查看其他用户的计算作业效率指标。

AI Predicted 5.4 Difficulty: Easy EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
ubccr xdmod < 11.0.3 affected
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I. Basic Information for CVE-2026-45776

Vulnerability Information
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Vulnerability Title
Open XDMoD has Broken Access Control via Client-Controlled Session Variable
Source: CVE Program / CVE List V5
Vulnerability Description
OpenXDMoD is an open framework for collecting and analyzing HPC metrics. Prior to version 11.0.3, a flaw in Open XDMoD's access control logic allows an attacker to submit a crafted HTTPS POST request that sets a session variable used for authorization decisions. If an installation of Open XDMoD includes the optional Job Performance (SUPReMM) module, an attacker could bypass intended data access restrictions and view other users' compute job efficiency metrics. All deployments of Open XDMoD prior to version 11.0.3 that contain the optional Job Performance (SUPReMM) module are impacted. This issue was reported privately on 2026-04-06, and at this time there is no evidence that this vulnerability has been exploited in the wild. The vulnerability was patched in Open XDMoD 11.0.3 on 2026-05-12. As a workaround, apply the patch manually.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Open XDMoD 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open XDMoD是Center for Computational Research开源的一款用于管理高性能计算资源的开源工具。 Open XDMoD 11.0.3之前版本存在访问控制错误漏洞，该漏洞源于访问控制逻辑缺陷，允许攻击者提交特制的HTTPS POST请求设置用于授权决策的会话变量，可能导致绕过数据访问限制并查看其他用户的计算作业效率指标。
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
ubccr xdmod < 11.0.3 -

II. Public POCs for CVE-2026-45776

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III. Intelligence Information for CVE-2026-45776

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Vendor Advisories for CVE-2026-45776 (1)

Other References for CVE-2026-45776 (1)

Other References for CVE-2026-45776 (1)

Same Patch Batch · ubccr · 2026-06-05 · 4 CVEs total

CVE-2026-45777 Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Inject
CVE-2026-45779 Open XDMoD Vulnerable to Unauthenticated SQL Injection Leading to Full Database Compromise
CVE-2026-45778 Open XDMoD Vulnerable to Reflected Cross-Site Scripting (XSS) in Password Reset

IV. Related Vulnerabilities

Same product: xdmod
Same vendor: ubccr
Same weakness: CWE-284

V. Comments for CVE-2026-45776

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