Allocation of Resources Without Limits or Throttling Affecting jupyterhub-ltiauthenticator package, versions [,1.6.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-JUPYTERHUBLTIAUTHENTICATOR-15911746
- published6 Apr 2026
- disclosed3 Apr 2026
- credityueyueL
Introduced: 3 Apr 2026
CVE-2026-34052 (opens in a new tab)How to fix?
Upgrade jupyterhub-ltiauthenticator to version 1.6.3 or higher.
Overview
jupyterhub-ltiauthenticator is a JupyterHub authenticator implementing LTI v1.1 and LTI v1.3
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the unbounded growth of a class-level dictionary used for storing OAuth nonces. An attacker can exhaust server memory by sending repeated requests with unique nonces and a valid consumer key.
Note: Successful exploitation requires the attacker to have prior knowledge of a valid consumer key.