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VULNERABILITIES

CVE-2025-55796 Details

Description

The openml/openml.org web application version v2.0.20241110 uses predictable MD5-based tokens for critical user workflows such as signup confirmation, password resets, email confirmation resends, and email change confirmation. These tokens are generated by hashing the current timestamp formatted as "%d %H:%M:%S" without incorporating any user-specific data or cryptographic randomness. This predictability allows remote attackers to brute-force valid tokens within a small time window, enabling unauthorized account confirmation, password resets, and email change approvals, potentially leading to account takeover.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/openml [email protected]Product
https://github.com/openml/openml.org [email protected]Product
https://github.com/openml/openml.org/security/advisories/GHSA-xfjh-gf9p-8qr6 [email protected]ExploitVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-400Uncontrolled Resource ConsumptionCISA-ADP

Affected Products

ProductVersions
openml openml.org
<= 2.0.20241110

CPE

  • cpe:2.3:a:openml:openml.org:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-55796
NVD Published Date:
Nov 18, 2025
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2025-55796 Details - Not Deferred