LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI.

Code

The project this record applies to. Exploit listings stay in References.

• Repository · github.com

Timeline

Detection, updates, and resolution for this record.

1. Apr 3, 2026 · NIST NVD

   Detected

   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.

2. Jul 24, 2026 · NIST NVD

   Updated

   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.

Affected

• cpe jupyter/lti jupyterhub authenticatorversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-34052

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2026-34052

  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 cons

  nvd.nist.gov

References

• Product · github.com
• Vendor Advisory · github.com