CVE-2026-45776: OpenXDMoD is an open framework for collecting and analyzing HPC metrics

Q: How do I fix CVE-2026-45776?

open xdmod: upgrade to 11.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-45776 being exploited?

CVE-2026-45776 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-45776 affect?

CVE-2026-45776 affects open xdmod. Severity is medium (CVSS 4.3). 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 au

Q: How urgent is CVE-2026-45776?

Priority 19/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2026-45776 is a medium-severity flaw (CVSS 4.3) affecting open xdmod. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 effic

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 85%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-06-05
Last modified	2026-07-23

Publisher (CNA): GitHub, Inc. · Vendor: buffalo

Last updated 2026-07-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-05 20:17 UTCPublished CVE record published
2026-07-23 07:10 UTCUpdated Record last modified

buffalo open xdmod UPGRADE

Affected: < 11.0.3

Fixed in: 11.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy open-xdmod || rpm -q open-xdmod || open-xdmod --version

2. UPGRADE to 11.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade open-xdmod

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade open-xdmod

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-45776?

open xdmod: upgrade to 11.0.3. Exact commands for each OS are on this page.

Is CVE-2026-45776 being exploited?

CVE-2026-45776 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-45776 affect?

CVE-2026-45776 affects open xdmod. Severity is medium (CVSS 4.3). 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 au

How urgent is CVE-2026-45776?

Priority 19/100. No elevated risk signals yet.

Related CVEs

CVE-2026-45779 CRITICAL 9.8 UPGRADE OpenXDMoD is an open framework for collecting and analyzing HPC metrics
CVE-2026-45777 CRITICAL 9.8 UPGRADE OpenXDMoD is an open framework for collecting and analyzing HPC metrics
CVE-2026-45778 MEDIUM 5.4 UPGRADE OpenXDMoD is an open framework for collecting and analyzing HPC metrics

References

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