Description

LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3.

INFO

Published Date :

2026-04-03T22:04:10.519Z

Last Modified :

2026-04-06T18:59:04.966Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-34052 vulnerability.

Vendors Products
Jupyterhub
  • Ltiauthenticator
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34052.

URL Resource
https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3 cve-icon cve-icon
https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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