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CVE-2026-25138

MEDIUM

5.3

Description

Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. Prior to versions 35.8.3, 38.5.4, and 39.3.1, the WebUI login endpoint returns distinct error messages depending on whether a supplied username exists, allowing unauthenticated attackers to enumerate valid usernames. Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.

CVE Details

CVSS v3.1 Score5.3

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/25/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

cern:rucio

Weaknesses (CWE)

CWE-204

References

https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html#authentication-and-error-messages(security-advisories@github.com)

https://github.com/rucio/rucio/releases/tag/35.8.3(security-advisories@github.com)

https://github.com/rucio/rucio/releases/tag/38.5.4(security-advisories@github.com)

https://github.com/rucio/rucio/releases/tag/39.3.1(security-advisories@github.com)

https://github.com/rucio/rucio/security/advisories/GHSA-38wq-6q2w-hcf9(security-advisories@github.com)

https://github.com/rucio/rucio/security/advisories/GHSA-38wq-6q2w-hcf9(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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