CVEvulnerability

CVE-2026-54338

5.3 MEDIUM Published 2026-08-07 Modified 2026-09-09 Official page ↗

Status: Awaiting Analysis
Published: 2026-08-07
Last modified: 2026-09-09
Assigner: [email protected]
CVSS 3.1 ([email protected]): 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses: CWE-400

Description

JupyterHub is software that allows users to create a multi-user server for Jupyter notebooks. Prior to 5.5.0, invalid input to form-based login authenticators can place an unbounded attacker-controlled username in failed-login logs, allowing an unauthenticated attacker to consume logging and storage resources. This issue is fixed in version 5.5.0.

Weakness · CWE (1)

CWE-400 Uncontrolled Resource Consumption weakness

References

https://github.com/jupyterhub/jupyterhub/commit/d6dc595f84b7509969686da31d87d6d69e7fce0a github.com
https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-p43p-whwx-q52h github.com

CVE-2026-54338

Description

Related

Weakness · CWE (1)

References