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CVE-2026-25136

Published: Feb 25, 2026

Modified: Feb 26, 2026

PUBLISHED

CVSS v3.1

8.1

HIGH

Description

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.

Vendor	Product	Versions
rucio	rucio	affected `< 35.8.3` affected `>= 36.0.0rc1, < 38.5.4` affected `>= 39.0.0rc1, < 39.3.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

https://github.com/rucio/rucio/security/advisories/GHSA-h79m-5jjm-jm4q

x_refsource_CONFIRM

https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html

x_refsource_MISC

https://github.com/rucio/rucio/releases/tag/35.8.3

x_refsource_MISC

https://github.com/rucio/rucio/releases/tag/38.5.4

x_refsource_MISC

https://github.com/rucio/rucio/releases/tag/39.3.1

x_refsource_MISC

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