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.
References
| Link | Resource |
|---|---|
| https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3 | Product |
| https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj | Vendor Advisory |
Configurations
History
13 Apr 2026, 17:44
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Jupyter lti Jupyterhub Authenticator
Jupyter |
|
| CPE | cpe:2.3:a:jupyter:lti_jupyterhub_authenticator:*:*:*:*:*:*:*:* | |
| References | () https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3 - Product | |
| References | () https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj - Vendor Advisory |
03 Apr 2026, 23:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-03 23:17
Updated : 2026-04-13 17:44
NVD link : CVE-2026-34052
Mitre link : CVE-2026-34052
CVE.ORG link : CVE-2026-34052
JSON object : View
Products Affected
jupyter
- lti_jupyterhub_authenticator