CVE-2026-45776Network attack vector

Data disclosure via client-controlled authorization session variable

Published Jun 5, 2026 · Updated Jun 5, 2026

Improper access control in Open XDMoD before 11.0.3 allows remote authenticated users to view other users' job efficiency metrics. The HTTPS request handler accepts a client-supplied value and stores it in session state that downstream authorization decisions trust. Exploitation requires a low-privileged account and the optional Job Performance (SUPReMM) module, and exposes only other users' compute-job efficiency data.

CVSS severity5.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Open XDMoD before 11.0.3 allows remote authenticated users to view other users' job efficiency metrics. The HTTPS request handler accepts a client-supplied value and stores it in session state that downstream authorization decisions trust. Exploitation requires a low-privileged account and the optional Job Performance (SUPReMM) module, and exposes only other users' compute-job efficiency data.

The record

CVE
CVE-2026-45776
Published
Jun 5, 2026
Updated
Jun 5, 2026
Vendor
University at Buffalo Center for Computational Research
Product
Open XDMoD
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 11.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

University at Buffalo Center for Computational Research · Open XDMoDversion=< 11.0.3

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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