MEDIUMPyPI →
JupyterHub has Unauthenticated Denial of Service via Unbounded Username Logging on Failed Login
JupyterHub has Unauthenticated Denial of Service via Unbounded Username Logging on Failed Login
Affected packages
- jupyterhub— before 5.5.0
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-p43p-whwx-q52h
- https://nvd.nist.gov/vuln/detail/CVE-2026-54338
- https://github.com/jupyterhub/jupyterhub/commit/d6dc595f84b7509969686da31d87d6d69e7fce0a
- https://github.com/jupyterhub/jupyterhub
Structured record: https://osv.dev/vulnerability/GHSA-p43p-whwx-q52h
Recommended response stack
Snyk — Scan your dependencies in CI and fix this vulnerability.→Socket — Detect malicious and compromised packages before they ship.→
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