CVE-2025-59034: Indico Indico May Disclose Unauthorized User Vulnerability

MODERATE
Advisory Identifier: GHSA-4269-mcfh-cp7q
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CVSS 4.3
CWE-639
Published
Advisory Summary

CVE-2025-59034 is a MODERATE (CVSS 4.3) indico may disclose unauthorized user vulnerability (CWE-639: Authorization Bypass Through User-Controlled Key) affecting Indico libraries in the PyPI ecosystem. The issue involves indico may disclose unauthorized user details access via legacy api. Remediation is available by upgrading affected packages to version 3.3.8.

CVE-2025-59034 at a Glance

CVE Identifier CVE-2025-59034
GHSA Identifier GHSA-4269-mcfh-cp7q
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-639: Authorization Bypass Through User-Controlled Key
Affected Product Indico
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 4.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2025-59034

To remediate this vulnerability, upgrade all affected Indico dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

indico fixed: 3.3.8 
pip install indico>=3.3.8
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show indico

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-59034, inspect your installed packages using pip:

pip show indico

Analyze the terminal output to locate any version of Indico in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.3.8), your application is affected.

Note: The pip show indico command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-639: Authorization Bypass Through User-Controlled Key, where the system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. In Indico, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact A legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check. ### Patches You should to update to [Indico 3.3.8](https://github.com/indico/indico/releases/tag/v3.3.8) as soon as possible. See [the docs](https://docs.getindico.io/en/stable/installation/upgrade/) for instructions on how to update. ### Workarounds It is possible to restrict access to the affected API (e.g. in the webserver config) which is most likely unused anyway and thus will not break anything. ### For more information If you have any questions or comments about this advisory: - Open a thread in [our forum](https://talk.getindico.io/) - Email us privately at [indico-team@cern.ch](mailto:indico-team@cern.ch)

CVE-2025-59034 Affected Indico Versions

1 component(s)
Fixed Versions:
3.3.8
Product / Package Ecosystem Affected Versions Fixed Version
indico
pypi/indico
PyPI
< 3.3.8
3.3.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/indico/indico/security/advisories/GHSA-4269-mcfh-cp7q
NVD — CVE-2025-59034 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-59034
Indico Source Repository REPOSITORY
https://github.com/indico/indico
Indico Release RELEASE
https://github.com/indico/indico/releases/tag/v3.3.8

Frequently Asked Questions

What is CVE-2025-59034?
CVE-2025-59034 is a security vulnerability in Indico involving Indico may disclose unauthorized user details access via legacy API under CWE-639: Authorization Bypass Through User-Controlled Key.
Which Indico versions are affected?
Affected versions include releases prior to 3.3.8 across affected packages: indico.
What version fixes CVE-2025-59034?
Upgrading to 3.3.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is indico affected?
Yes, indico is affected in releases prior to 3.3.8. Upgrade your dependency to 3.3.8 or later.
What is the CVSS score of CVE-2025-59034?
CVE-2025-59034 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2025-59034?
CVE-2025-59034 is classified under CWE-639: Authorization Bypass Through User-Controlled Key (The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.).
How can I check PyPI dependencies for CVE-2025-59034?
Run the dependency tree command: 'pip show indico'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4269-mcfh-cp7q",
  "modified" : "2025-09-10T20:27:45Z",
  "published" : "2025-09-10T20:27:45Z",
  "aliases" : [ "CVE-2025-59034" ],
  "summary" : "Indico may disclose unauthorized user details access via legacy API",
  "details" : "### Impact\nA legacy API to retrieve user details could be misused to retrieve profile details of other users without having admin permissions due to a broken access check.\n\n### Patches\nYou should to update to [Indico 3.3.8](https://github.com/indico/indico/releases/tag/v3.3.8) as soon as possible.\nSee [the docs](https://docs.getindico.io/en/stable/installation/upgrade/) for instructions on how to update.\n\n### Workarounds\nIt is possible to restrict access to the affected API (e.g. in the webserver config) which is most likely unused anyway and thus will not break anything.\n\n### For more information\nIf you have any questions or comments about this advisory:\n\n- Open a thread in [our forum](https://talk.getindico.io/)\n- Email us privately at [indico-team@cern.ch](mailto:indico-team@cern.ch)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "indico"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.3.8"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 3.3.7"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/indico/indico/security/advisories/GHSA-4269-mcfh-cp7q"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-59034"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/indico/indico"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/indico/indico/releases/tag/v3.3.8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-10T20:27:45Z",
    "nvd_published_at" : "2025-09-10T16:15:41Z"
  }
}