CVE-2025-62724
Medium
Description
Open OnDemand is an open-source HPC portal. Prior to versions 4.0.8 and 3.1.16, users can craft a "Time of Check to Time of Use" (TOCTOU) attack when downloading zip files to access files outside of the OOD_ALLOWLIST. This vulnerability impacts sites that use the file browser allowlists in all current versions of OOD. However, files accessed are still protected by the UNIX permissions. Open OnDemand versions 4.0.8 and 3.1.16 have been patched for this vulnerability.
SeverityMedium
CVSS4.3
Exploit probability—
ProductOsc Ondemand
PublishedNov 20, 2025
First seenNov 20, 2025
Weakness typeCWE-61CWE-61CWE-367CWE-367
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OSC ondemand | < 4.0.8, < 3.1.16 | — |
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