Summaryinfo

A vulnerability, which was classified as critical, has been found in obiba opal up to 5.1.0. This affects an unknown part of the file /temp/. Performing a manipulation results in path traversal. This vulnerability was named CVE-2025-27101. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability, which was classified as critical, was found in obiba opal up to 5.1.0. This affects an unknown functionality of the file /temp/. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Opal is OBiBa’s core database application for biobanks or epidemiological studies. Prior to version 5.1.1, when copying any parent directory to a folder in the /temp/ directory, all files in that parent directory are copied, including files which the user should not have access to. All users of the application are impacted, as this is exploitable by any user to reveal all files in the opal filesystem. This also means that low-privilege users such as DataShield users can retrieve the files of other users. Version 5.1.1 contains a patch for the issue.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-27101 since 02/18/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 5.1.1 eliminates this vulnerability. Applying the patch fca7dc9c8348064741b2e8b2c31b66660a935743 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• obiba

Name

• opal

Version

• 5.0
• 5.1.0

License

• open-source

Website

• Product: https://github.com/obiba/opal/

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