Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/217537?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/217537?format=api", "vulnerability_id": "VCID-f291-pudw-wfa3", "summary": "JupyterHub is an open source multi-user server for Jupyter notebooks. In affected versions users who have multiple JupyterLab tabs open in the same browser session, may see incomplete logout from the single-user server, as fresh credentials (for the single-user server only, not the Hub) reinstated after logout, if another active JupyterLab session is open while the logout takes place. Upgrade to JupyterHub 1.5. For distributed deployments, it is jupyterhub in the _user_ environment that needs patching. There are no patches necessary in the Hub environment. The only workaround is to make sure that only one JupyterLab tab is open when you log out.", "aliases": [ { "alias": "BIT-jupyterhub-2021-41247" }, { "alias": "CVE-2021-41247" }, { "alias": "GHSA-cw7p-q79f-m2v7" }, { "alias": "PYSEC-2021-386" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/49052?format=api", "purl": "pkg:deb/debian/jupyterhub@2.0.0%2Bds1-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/jupyterhub@2.0.0%252Bds1-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/49048?format=api", "purl": "pkg:deb/debian/jupyterhub@3.0.0%2Bds1-1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/jupyterhub@3.0.0%252Bds1-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/49051?format=api", "purl": "pkg:deb/debian/jupyterhub@5.2.1%2Bds1-4?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/jupyterhub@5.2.1%252Bds1-4%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/49050?format=api", "purl": "pkg:deb/debian/jupyterhub@5.2.1%2Bds1-5?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/jupyterhub@5.2.1%252Bds1-5%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/67455?format=api", "purl": "pkg:pypi/jupyterhub@1.5.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.5.0" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/62320?format=api", "purl": "pkg:pypi/jupyterhub@1.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" }, { "vulnerability": "VCID-v9vy-ct5f-k3bn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/62321?format=api", "purl": "pkg:pypi/jupyterhub@1.1.0b1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" }, { "vulnerability": "VCID-v9vy-ct5f-k3bn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.1.0b1" }, { "url": "http://public2.vulnerablecode.io/api/packages/62322?format=api", "purl": "pkg:pypi/jupyterhub@1.1.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" }, { "vulnerability": "VCID-v9vy-ct5f-k3bn" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.1.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/22700?format=api", "purl": "pkg:pypi/jupyterhub@1.2.0b1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.2.0b1" }, { "url": "http://public2.vulnerablecode.io/api/packages/67448?format=api", "purl": "pkg:pypi/jupyterhub@1.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.2.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/67449?format=api", "purl": "pkg:pypi/jupyterhub@1.2.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.2.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/67450?format=api", "purl": "pkg:pypi/jupyterhub@1.2.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.2.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/67451?format=api", "purl": "pkg:pypi/jupyterhub@1.3.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.3.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/67452?format=api", "purl": "pkg:pypi/jupyterhub@1.4.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.4.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/67453?format=api", "purl": "pkg:pypi/jupyterhub@1.4.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.4.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/67454?format=api", "purl": "pkg:pypi/jupyterhub@1.4.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-7tnx-wrk3-w3bs" }, { "vulnerability": "VCID-e6ku-5pdp-8yd1" }, { "vulnerability": "VCID-f291-pudw-wfa3" }, { "vulnerability": "VCID-ke6t-cnks-kkht" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub@1.4.2" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-41247", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00212", "scoring_system": "epss", "scoring_elements": "0.43857", "published_at": "2026-06-11T12:55:00Z" }, { "value": "0.00212", "scoring_system": "epss", "scoring_elements": "0.44011", "published_at": "2026-06-12T12:55:00Z" }, { "value": "0.00212", "scoring_system": "epss", "scoring_elements": "0.44031", "published_at": "2026-06-13T12:55:00Z" }, { "value": "0.00212", "scoring_system": "epss", "scoring_elements": "0.44019", "published_at": "2026-06-14T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-41247" }, { "reference_url": "https://github.com/jupyterhub/jupyterhub", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jupyterhub/jupyterhub" }, { "reference_url": "https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jupyterhub/jupyterhub/commit/5ac9e7f73a6e1020ffddc40321fc53336829fe27" }, { "reference_url": "https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-cw7p-q79f-m2v7" }, { "reference_url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-386.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2021-386.yaml" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41247", "reference_id": "", "reference_type": "", "scores": [ { "value": "3.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N" }, { "value": "5.1", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41247" }, { "reference_url": "https://github.com/advisories/GHSA-cw7p-q79f-m2v7", "reference_id": "GHSA-cw7p-q79f-m2v7", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-cw7p-q79f-m2v7" } ], "weaknesses": [ { "cwe_id": 613, "name": "Insufficient Session Expiration", "description": "According to WASC, Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": "3.5 - 6.9", "exploitability": "0.5", "weighted_severity": "6.2", "risk_score": 3.1, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-f291-pudw-wfa3" }