What is CVE-2025-62724?

CVE-2025-62724 is a medium-severity vulnerability in Osc Ondemand, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 4.3/10. Published 2025-11-20.

How severe is CVE-2025-62724?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Osc Ondemand

CVE-2025-62724

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.

EPSS: 0.002 (10.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Osc Ondemand — versions < 4.0.8, < 3.1.16

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-62724?: CVE-2025-62724 is a medium-severity vulnerability in Osc Ondemand, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 4.3/10. Published 2025-11-20.
How severe is CVE-2025-62724?: Medium severity. CVSS v3 base score is 4.3 out of 10.