CVE-2026-25136
Rucio WebUI has a Reflected Cross-site Scripting Vulnerability
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. A reflected Cross-site Scripting vulnerability was located in versions prior to 35.8.3, 38.5.4, and 39.3.1 in the rendering of the ExceptionMessage of the WebUI 500 error which could allow attackers to steal login session tokens of users who navigate to a specially crafted URL. Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.
| CWE | CWE-79 CWE-1004 |
| Vendor | rucio |
| Product | rucio |
| Published | Feb 25, 2026 |
| Last Updated | Feb 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
rucio / rucio
< 35.8.3 >= 36.0.0rc1, < 38.5.4 >= 39.0.0rc1, < 39.3.1
References
github.com: https://github.com/rucio/rucio/security/advisories/GHSA-h79m-5jjm-jm4q cheatsheetseries.owasp.org: https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html github.com: https://github.com/rucio/rucio/releases/tag/35.8.3 github.com: https://github.com/rucio/rucio/releases/tag/38.5.4 github.com: https://github.com/rucio/rucio/releases/tag/39.3.1