CVE-2026-25736

6.1 MEDIUM
Published: February 25, 2026 Modified: February 27, 2026
View on NVD

Description

Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. Versions prior to 35.8.3, 38.5.4, and 39.3.1 have a stored Cross-Site Scripting (XSS) vulnerability in the Custom RSE Attribute of the WebUI where attacker-controlled input is persisted by the backend and later rendered in the WebUI without proper output encoding. This allows arbitrary JavaScript execution in the context of the WebUI for users who view affected pages, potentially enabling session token theft or unauthorized actions. Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/rucio/rucio/releases/tag/35.8.3
Source: security-advisories@github.com
Product Release Notes
https://github.com/rucio/rucio/releases/tag/38.5.4
Source: security-advisories@github.com
Product Release Notes
https://github.com/rucio/rucio/releases/tag/39.3.1
Source: security-advisories@github.com
Product Release Notes
https://github.com/rucio/rucio/security/advisories/GHSA-fq4f-4738-rqxm
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/rucio/rucio/security/advisories/GHSA-fq4f-4738-rqxm
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.1 / 10.0
EPSS (Exploit Probability)
0.1%
17th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

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