{"answers":{"affected":"1 open source package ship an affected version, including jupyterhub.","exploited":"There is no known exploitation of CVE-2026-108752 in the wild and no public exploit code.","fix":"Upgrade jupyterhub to 6.1.0 or later.","what":"CVE-2026-108752 is a low-severity vulnerability in jupyterhub, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-108752 and fix it if it is affected.\n\nWhat it is: CVE-2026-108752 is a low-severity vulnerability in jupyterhub, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-108752 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- jupyterhub (Bitnami): affected all versions; fixed in 6.1.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-108752/ (Markdown: https://insights.sbomify.com/CVE-2026-108752/index.md)","id":"CVE-2026-108752","markdown":"https://insights.sbomify.com/CVE-2026-108752/index.md","name":"CVE-2026-108752","record":{"aliases":["BIT-jupyterhub-2026-108752","DEBIAN-CVE-2026-108752","GHSA-h63v-vvgj-vrfh","MINI-6h9x-f9mm-ppcp","UBUNTU-CVE-2026-108752"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"JupyterHub","requires_auth":"low_privilege","summary":"Authenticated users can overwrite other users' OAuth clients via hyphenated usernames, causing denial of service and token revocation.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-694","name":"Use of Multiple Resources with Duplicate Identifier"}],"description":"JupyterHub through 6.0.1 contains an identifier collision vulnerability that allows authenticated users to overwrite another user's named-server OAuth client by registering a hyphenated username. Attackers holding a name like alice-prod can overwrite the client for alice's server prod, breaking OAuth login and revoking tokens by stopping their own server.","ecosystems":["Bitnami"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"JupyterHub through 6.0.1 OAuth Client ID Collision via Unescaped Hyphen","id":"CVE-2026-108752","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"business_logic","year":"2026"},"n_packages":1,"n_references":6,"next":{"headline":"Agnaistic agnai through 1.0.555 Hard-Coded Credentials in self-host Docker Compose","id":"CVE-2026-108753"},"packages":[{"ecosystem":"Bitnami","fixed":["6.1.0"],"introduced":["0"],"last_affected":[],"package":"jupyterhub","purl":"pkg:bitnami/jupyterhub","source":"BIT-jupyterhub-2026-108752"}],"prev":{"headline":"MoAI-ADK through 3.1.2 Symlink Following via moai init Template Deployer","id":"CVE-2026-108751"},"products":["jupyterhub"],"published":"2026-10-11","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-13","vendors":["jupyterhub"]},"summary":"Authenticated users can overwrite other users' OAuth clients via hyphenated usernames, causing denial of service and token revocation.","url":"https://insights.sbomify.com/CVE-2026-108752/"}