OSC ondemand up to 3.1.15/4.0.7 symlink

Summaryinfo

A vulnerability was found in OSC ondemand up to 3.1.15/4.0.7. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Such manipulation leads to symlink. This vulnerability is referenced as CVE-2025-62724. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in OSC ondemand up to 3.1.15/4.0.7. It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-62724 since 10/20/2025. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.1.16 or 4.0.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-198294). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• OSC

Name

• ondemand

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9
• 3.1.10
• 3.1.11
• 3.1.12
• 3.1.13
• 3.1.14
• 3.1.15
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6
• 4.0.7

Website

• Product: https://github.com/OSC/ondemand/

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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