Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Injection
CVE-2026-45777

9.3CRITICAL

Key Information:

Vendor

Ubccr

Status
Xdmod
Vendor
CVE Published:
5 June 2026

What is CVE-2026-45777?

OpenXDMoD is an open framework for collecting and analyzing HPC metrics. Starting in version 9.5.0 and prior to version 11.0.3, an attacker can remotely execute arbitrary system commands on the web server hosting Open XDMoD with the privileges of the web server process. This could allow an attacker to read or modify application data, alter system configuration, or disrupt service availability. All deployments of Open XDMoD versions 9.5.0 through 11.0.2 (inclusive) 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.

Affected Version(s)

xdmod >= 9.5.0, < 11.0.3

References

https://github.com/ubccr/xdmod/security/advisories/GHSA-2...
x_refsource_CONFIRM
https://github.com/ubccr/xdmod/releases/tag/v11.0.3-2
x_refsource_MISC
https://open.xdmod.org/security_patches/GHSA-29qm-7w4v-43...
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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