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TI-2026-33513 Aliases CVE-2026-45776

Open XDMoD has Broken Access Control via Client-Controlled Session Variable

Priority LOW 24CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Fixed xdmod (ubccr): 11.0.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BUFFALO INC.xdmodbefore 11.0.311.0.3Patch availableCNA
  • xdmod VendorBUFFALO INC. Affected before 11.0.3 Fixed in 11.0.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:*before 11.0.3VulnerableBUFFALO INC.
  • cpe:2.3:a:buffalo:open_xdmod:*:*:*:*:*:*:*:* Versions before 11.0.3 Vulnerable ·BUFFALO INC.

Remediation

  • Fix · CNA xdmod (ubccr) Fixed in 11.0.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-45776

References

Patch 2

Other 1

  • TI-2026-33516 Open XDMoD Vulnerable to Unauthenticated SQL Injection Leading to Full Database Compromise CVSS 4.0CRITICAL 9.3
  • TI-2026-33514 Open XDMoD Vulnerable to Unauthenticated Remote Code Execution (RCE) via OS Command Injection CVSS 4.0CRITICAL 9.3
  • TI-2018-12139 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.1CRITICAL 9.8
  • TI-2018-12116 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.0HIGH 7.5
  • TI-2026-33515 Open XDMoD Vulnerable to Reflected Cross-Site Scripting (XSS) in Password Reset CVSS 4.0HIGH 8.6
  • TI-2018-12115 An issue was discovered in Open XDMoD through 7.5.0. CVSS 3.0MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences