CVE-2026-26002

Medium

Published: 04 March 2026

Published

04 March 2026

Modified

18 March 2026

KEV Added

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Patch

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CVSS Score v4 6.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Score 0.0053 40.8th percentile

Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-26002 is a medium-severity Injection (CWE-74) vulnerability in Osc Open Ondemand. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 40.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Deeper analysis

CVE-2026-26002 is a vulnerability in the Files application of Open OnDemand, an open-source high-performance computing portal. Versions prior to 4.0.9 and 4.1.3 are susceptible to malicious input when navigating to a directory, as classified under CWE-74. The issue carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

An unauthenticated remote attacker can exploit this vulnerability over the network with low attack complexity and no user interaction required. Successful exploitation enables high-impact compromise of confidentiality, integrity, and availability.

The vulnerability has been addressed in Open OnDemand versions 4.0.9 and 4.1.3. Affected versions remain susceptible, and administrators are advised to upgrade promptly. Additional details are available in the GitHub security advisory at GHSA-f83q-mhrr-3cr2 and the associated patching commits.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-9500

Vulnerability details

Open OnDemand is an open-source high-performance computing portal. The Files application in OnDemand versions prior to 4.0.9 and 4.1.3 is susceptible to malicious input when navigating to a directory. This has been patched in versions 4.0.9 and 4.1.3. Versions below…

this remain susceptible.

CWE(s): CWE-74

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Unauthenticated remote injection flaw (CWE-74) in public-facing Open OnDemand Files web app directly enables exploitation of a public-facing application for full system compromise.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0