{"action":"Upgrade jupyterhub-ltiauthenticator to 1.6.3 or later.","affected":[{"fixed":"1.6.3","introduced":"0"}],"component":"jupyterhub-ltiauthenticator","cve_ids":["CVE-2026-34052"],"ecosystem":"PyPI","epss":0.00329,"exploited":false,"fixed_versions":["1.6.3"],"ghsa_id":"GHSA-8mxq-7xr7-2fxj","id":"tcs_01M5KH01KVTZNS9HHT60ZECC5Y","modified_at":"2026-07-13T16:31:58.992014411Z","published_at":"2026-07-13T14:36:47.380994Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2533","https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj","https://nvd.nist.gov/vuln/detail/CVE-2026-34052","https://github.com/jupyterhub/ltiauthenticator","https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3","https://pypi.org/project/jupyterhub-ltiauthenticator","https://github.com/advisories/GHSA-8mxq-7xr7-2fxj"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"PYSEC-2026-2533","url":"https://osv.dev/vulnerability/PYSEC-2026-2533"}],"summary":"LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)"}