Vulnerability · Published Mar 11, 2025 · Assigned by GitHub_M
CVE-2025-27101Broken Access Control in Opal filesystem's copy functionality exposes all user data
High 7.3
In plain English
A high-severity path traversal in opal from obiba. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
References
- https://github.com/obiba/opal/security/advisories/GHSA-rxmx-gqjj-vhv8 x_refsource_CONFIRM
- https://github.com/obiba/opal/commit/fca7dc9c8348064741b2e8b2c31b66660a935743 x_refsource_MISC