{"items":[{"id":"NVI-00012051","kind":"vulnerability","title":"Vikunja: Scoped API token can mint unrestricted OAuth session credentials","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-v3p6-34mc-hj7v","CVE-2026-57458"],"plain_summary":"GitHub lists this reviewed advisory for code.vikunja.io/api. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-8415a4f1047beffbf2b5ddd9fe9ff894"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-09T20:40:28.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-94e838e10d960c264b8d78b318fecab1"},{"kind":"CVSS","as_of":"2026-10-16T20:04:29.760Z","value":"8.1 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-4e4e16a31282148066b9a3a98f2c65fb"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.26197. Missing scores are unknown.","source_id":"sr-8415a4f1047beffbf2b5ddd9fe9ff894"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-94e838e10d960c264b8d78b318fecab1","url":"https://github.com/advisories/GHSA-v3p6-34mc-hj7v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v3p6-34mc-hj7v","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-4e4e16a31282148066b9a3a98f2c65fb","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57458","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-57458","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T02:46:17.217Z"},{"id":"sr-8415a4f1047beffbf2b5ddd9fe9ff894","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-57458","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.082Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-94e838e10d960c264b8d78b318fecab1"],"technology":"code.vikunja.io/api","known_exclusions":[],"conditions_summary":"## Summary\n\nA scoped API token can bypass its declared permissions by using the OAuth authorization flow to mint normal session credentials.\n\nA token limited to:\n\n```json\n{\"oauth\":[\"authorize\"]}\n```\n\ncan call `/api/v1/oauth/authorize`, receive an OAuth authorization code, exchange it at `/api/v1/oauth/token`, and obtain a normal bearer JWT plus refresh token. The resulting credentials are not restricted by the original API-token permissions.\n\n## Affected Component\n\n* Scoped API tokens\n* OAuth authorization flow\n* `POST /api/v1/oauth/authorize`\n* `POST /api/v1/oauth/token`\n\n## Impact\n\nA narrowly scoped API token with only `oauth.authorize` can be converted into normal session credentials for the same user.\n\nThis bypasses the intended API-token permission boundary. An attacker who obtains or is delegated such a limited token can mint a normal JWT and refresh token, then access routes outside the original token scope.\n\nRuntime validation showed that the original scoped token could not access `GET /api/v1/user`, but the minted OAuth access token could access:\n\n* `GET /api/v1/user`\n* `GET /api/v1/projects`\n\nNo cross-user access, privilege escalation to admin, or access to another accoun","public_affected_ranges":["= 2.3.0"]}],"null_published_at":"2026-11-05T19:10:23.258Z","source_updated_at":"2026-10-09T20:40:28.000Z","source_disclosed_at":"2026-10-09T20:40:28.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00012051","kind":"vulnerability","title":"Vikunja: Scoped API token can mint unrestricted OAuth session credentials","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v3p6-34mc-hj7v","CVE-2026-57458"],"plain_summary":"GitHub lists this reviewed advisory for code.vikunja.io/api. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-8415a4f1047beffbf2b5ddd9fe9ff894"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-09T20:40:28.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-94e838e10d960c264b8d78b318fecab1"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.330%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.26197. Missing scores are unknown.","source_id":"sr-8415a4f1047beffbf2b5ddd9fe9ff894"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-94e838e10d960c264b8d78b318fecab1","url":"https://github.com/advisories/GHSA-v3p6-34mc-hj7v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v3p6-34mc-hj7v","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"},{"id":"sr-8415a4f1047beffbf2b5ddd9fe9ff894","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-57458","publisher":"FIRST EPSS","observed_at":"2026-11-01T01:39:43.082Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-94e838e10d960c264b8d78b318fecab1"],"technology":"code.vikunja.io/api","known_exclusions":[],"conditions_summary":"## Summary\n\nA scoped API token can bypass its declared permissions by using the OAuth authorization flow to mint normal session credentials.\n\nA token limited to:\n\n```json\n{\"oauth\":[\"authorize\"]}\n```\n\ncan call `/api/v1/oauth/authorize`, receive an OAuth authorization code, exchange it at `/api/v1/oauth/token`, and obtain a normal bearer JWT plus refresh token. The resulting credentials are not restricted by the original API-token permissions.\n\n## Affected Component\n\n* Scoped API tokens\n* OAuth authorization flow\n* `POST /api/v1/oauth/authorize`\n* `POST /api/v1/oauth/token`\n\n## Impact\n\nA narrowly scoped API token with only `oauth.authorize` can be converted into normal session credentials for the same user.\n\nThis bypasses the intended API-token permission boundary. An attacker who obtains or is delegated such a limited token can mint a normal JWT and refresh token, then access routes outside the original token scope.\n\nRuntime validation showed that the original scoped token could not access `GET /api/v1/user`, but the minted OAuth access token could access:\n\n* `GET /api/v1/user`\n* `GET /api/v1/projects`\n\nNo cross-user access, privilege escalation to admin, or access to another accoun","public_affected_ranges":["= 2.3.0"]}],"null_published_at":"2026-11-04T02:53:08.398Z","source_updated_at":"2026-10-09T20:40:28.000Z","source_disclosed_at":"2026-10-09T20:40:28.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-01T00:58:23.763Z"},{"id":"NVI-00012051","kind":"vulnerability","title":"Vikunja: Scoped API token can mint unrestricted OAuth session credentials","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-v3p6-34mc-hj7v","CVE-2026-57458"],"plain_summary":"GitHub lists this reviewed advisory for code.vikunja.io/api. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-94e838e10d960c264b8d78b318fecab1"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-09T20:40:28.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-94e838e10d960c264b8d78b318fecab1"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-94e838e10d960c264b8d78b318fecab1","url":"https://github.com/advisories/GHSA-v3p6-34mc-hj7v","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-v3p6-34mc-hj7v","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T00:58:23.763Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-94e838e10d960c264b8d78b318fecab1"],"technology":"code.vikunja.io/api","known_exclusions":[],"conditions_summary":"## Summary\n\nA scoped API token can bypass its declared permissions by using the OAuth authorization flow to mint normal session credentials.\n\nA token limited to:\n\n```json\n{\"oauth\":[\"authorize\"]}\n```\n\ncan call `/api/v1/oauth/authorize`, receive an OAuth authorization code, exchange it at `/api/v1/oauth/token`, and obtain a normal bearer JWT plus refresh token. The resulting credentials are not restricted by the original API-token permissions.\n\n## Affected Component\n\n* Scoped API tokens\n* OAuth authorization flow\n* `POST /api/v1/oauth/authorize`\n* `POST /api/v1/oauth/token`\n\n## Impact\n\nA narrowly scoped API token with only `oauth.authorize` can be converted into normal session credentials for the same user.\n\nThis bypasses the intended API-token permission boundary. An attacker who obtains or is delegated such a limited token can mint a normal JWT and refresh token, then access routes outside the original token scope.\n\nRuntime validation showed that the original scoped token could not access `GET /api/v1/user`, but the minted OAuth access token could access:\n\n* `GET /api/v1/user`\n* `GET /api/v1/projects`\n\nNo cross-user access, privilege escalation to admin, or access to another accoun","public_affected_ranges":["= 2.3.0"]}],"null_published_at":"2026-11-01T01:03:56.626Z","source_updated_at":"2026-10-09T20:40:28.000Z","source_disclosed_at":"2026-10-09T20:40:28.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-01T00:58:23.763Z"}],"next_cursor":null,"snapshot_revision":"42594"}