CVE-2026-25136
HIGHRucio < 35.8.3 - Reflected Cross-Site Scripting via WebUI ExceptionMessage
Title source: llmDescription
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.
References (5)
Core 5
Core References
Vendor Advisory x_refsource_confirm
https://github.com/rucio/rucio/security/advisories/GHSA-h79m-5jjm-jm4q
Various Sources x_refsource_misc
https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html
Release Notes x_refsource_misc
https://github.com/rucio/rucio/releases/tag/35.8.3
Release Notes x_refsource_misc
https://github.com/rucio/rucio/releases/tag/38.5.4
Release Notes x_refsource_misc
https://github.com/rucio/rucio/releases/tag/39.3.1
Scores
CVSS v3
8.1
EPSS
0.0008
EPSS Percentile
23.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
CWE-1004
Status
published
Products (2)
cern/rucio
< 35.8.3
pypi/rucio-webui
0 - 35.8.3PyPI
Published
Feb 25, 2026
Tracked Since
Feb 26, 2026