CVE-2026-25136
HIGH
GHSA-h79m-5jjm-jm4q
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Lifecycle Timeline
4Description
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.
Analysis
Session hijacking in Rucio's WebUI error page allows unauthenticated attackers to steal user login tokens via reflected cross-site scripting in specially crafted URLs, affecting versions prior to 35.8.3, 38.5.4, and 39.3.1. Public exploit code exists for this vulnerability. …
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Remediation
Within 24 hours: Identify all Rucio instances in your environment and isolate them from untrusted networks; notify the Rucio security team for patch timeline. Within 7 days: Implement network segmentation to restrict access to Rucio services, enforce multi-factor authentication, and review access logs for suspicious activity. …
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External POC / Exploit Code
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