{"url":"http://public2.vulnerablecode.io/api/packages/69488?format=json","purl":"pkg:pypi/jupyterhub-ltiauthenticator@1.4.0","type":"pypi","namespace":"","name":"jupyterhub-ltiauthenticator","version":"1.4.0","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"1.6.3","latest_non_vulnerable_version":"1.6.3","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/349563?format=json","vulnerability_id":"VCID-xqew-sch7-b7dw","summary":"LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2026-34052","reference_id":"","reference_type":"","scores":[{"value":"0.0004","scoring_system":"epss","scoring_elements":"0.12015","published_at":"2026-04-07T12:55:00Z"},{"value":"0.0004","scoring_system":"epss","scoring_elements":"0.12098","published_at":"2026-04-08T12:55:00Z"},{"value":"0.0004","scoring_system":"epss","scoring_elements":"0.12213","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16472","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16356","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16417","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00052","scoring_system":"epss","scoring_elements":"0.16457","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17261","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17125","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17184","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17206","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.173","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00055","scoring_system":"epss","scoring_elements":"0.17267","published_at":"2026-04-18T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.18759","published_at":"2026-05-14T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.18479","published_at":"2026-05-05T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.18563","published_at":"2026-05-07T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.18665","published_at":"2026-05-09T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.18628","published_at":"2026-05-11T12:55:00Z"},{"value":"0.0006","scoring_system":"epss","scoring_elements":"0.1866","published_at":"2026-05-12T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-34052"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jupyterhub/ltiauthenticator"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-06T18:58:43Z/"}],"url":"https://github.com/jupyterhub/ltiauthenticator/releases/tag/1.6.3"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34052","reference_id":"","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34052"},{"reference_url":"https://github.com/advisories/GHSA-8mxq-7xr7-2fxj","reference_id":"GHSA-8mxq-7xr7-2fxj","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-8mxq-7xr7-2fxj"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj","reference_id":"GHSA-8mxq-7xr7-2fxj","reference_type":"","scores":[{"value":"5.9","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-06T18:58:43Z/"}],"url":"https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-8mxq-7xr7-2fxj"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/994323?format=json","purl":"pkg:pypi/jupyterhub-ltiauthenticator@1.6.3","is_vulnerable":false,"affected_by_vulnerabilities":[],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:pypi/jupyterhub-ltiauthenticator@1.6.3"}],"aliases":["CVE-2026-34052","GHSA-8mxq-7xr7-2fxj"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-xqew-sch7-b7dw"}],"fixing_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/26820?format=json","vulnerability_id":"VCID-111h-br2m-7bbu","summary":"LTI JupyterHub Authenticator does not properly validate JWT Signature\n### Impact\n\nOnly users that has configured a JupyterHub installation to use the authenticator class `LTI13Authenticator` are influenced.\n\nLTI13Authenticator that was introduced in `jupyterhub-ltiauthenticator` 1.3.0 wasn't validating JWT signatures. This is believed to allow the LTI13Authenticator to authorize a forged request granting access to existing and new user identities.\n\n### Patches\n\nNone.\n\n### Workarounds\n\nNone.\n\n### References\n\n- [This code segment](https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164) didn't validate a JWT signature.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-25574","reference_id":"","reference_type":"","scores":[{"value":"0.00234","scoring_system":"epss","scoring_elements":"0.46212","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00234","scoring_system":"epss","scoring_elements":"0.46192","published_at":"2026-04-02T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58911","published_at":"2026-05-12T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58884","published_at":"2026-05-11T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58821","published_at":"2026-05-05T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58983","published_at":"2026-05-14T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58928","published_at":"2026-05-09T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58869","published_at":"2026-05-07T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58893","published_at":"2026-04-11T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58876","published_at":"2026-04-12T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58856","published_at":"2026-04-24T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.5889","published_at":"2026-04-16T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58894","published_at":"2026-04-18T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58873","published_at":"2026-04-21T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58872","published_at":"2026-04-26T12:55:00Z"},{"value":"0.0037","scoring_system":"epss","scoring_elements":"0.58857","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00587","scoring_system":"epss","scoring_elements":"0.69119","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00587","scoring_system":"epss","scoring_elements":"0.6905","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00587","scoring_system":"epss","scoring_elements":"0.69099","published_at":"2026-04-08T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-25574"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator","reference_id":"","reference_type":"","scores":[{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/jupyterhub/ltiauthenticator"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164","reference_id":"","reference_type":"","scores":[{"value":"10","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-02-25T14:50:01Z/"}],"url":"https://github.com/jupyterhub/ltiauthenticator/blob/3feec2e81b9d3b0ad6b58ab4226af640833039f3/ltiauthenticator/lti13/validator.py#L122-L164"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01","reference_id":"","reference_type":"","scores":[{"value":"10","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-02-25T14:50:01Z/"}],"url":"https://github.com/jupyterhub/ltiauthenticator/blob/main/CHANGELOG.md#140---2023-03-01"},{"reference_url":"https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp","reference_id":"","reference_type":"","scores":[{"value":"10","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"10.0","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"},{"value":"CRITICAL","scoring_system":"cvssv3.1_qr","scoring_elements":""},{"value":"CRITICAL","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-02-25T14:50:01Z/"}],"url":"https://github.com/jupyterhub/ltiauthenticator/security/advisories/GHSA-mcgx-2gcr-p3hp"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25574","reference_id":"","reference_type":"","scores":[{"value":"10.0","scoring_system":"cv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