{"items":[{"id":"NVI-00008275","kind":"vulnerability","title":"Craft CMS Race condition in Token Service potentially allows for token usage greater than the token limit","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6fx5-5cw5-4897","CVE-2026-27128"],"plain_summary":"OSV carries this publisher advisory for craftcms/cms, craftcms/cms. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.16.19 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.8.23 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-d71e3700ec6d8dc8ea6582eeb5a84d63"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.196%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.09303. Missing scores are unknown.","source_id":"sr-d71e3700ec6d8dc8ea6582eeb5a84d63"}],"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-fc81f3e6e6380a85da2c35b9b9cc304a","url":"https://github.com/advisories/GHSA-6fx5-5cw5-4897","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6fx5-5cw5-4897","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.935Z"},{"id":"sr-d71e3700ec6d8dc8ea6582eeb5a84d63","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-2026-27128","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.376Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"A Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes.\n\nTo make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place.\n\nFor this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user.\n\n## References\n\nhttps://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0-RC1; fixed 4.16.19"]},{"certainty":"source_listed","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"A Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes.\n\nTo make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place.\n\nFor this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user.\n\n## References\n\nhttps://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-RC1; fixed 5.8.23"]}],"null_published_at":"2026-11-08T01:52:04.816Z","source_updated_at":"2026-02-24T16:20:27.514Z","source_disclosed_at":"2026-02-23T22:16:22.000Z","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":"2026-10-31T21:41:59.935Z"},{"id":"NVI-00008275","kind":"vulnerability","title":"Craft CMS Race condition in Token Service potentially allows for token usage greater than the token limit","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6fx5-5cw5-4897","CVE-2026-27128"],"plain_summary":"OSV carries this publisher advisory for craftcms/cms, craftcms/cms. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 4.16.19 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 5.8.23 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"action_type":"vendor_patch","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":[],"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-fc81f3e6e6380a85da2c35b9b9cc304a","url":"https://github.com/advisories/GHSA-6fx5-5cw5-4897","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-6fx5-5cw5-4897","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:59.935Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"A Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes.\n\nTo make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place.\n\nFor this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user.\n\n## References\n\nhttps://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf","public_affected_ranges":["ECOSYSTEM: introduced 4.5.0-RC1; fixed 4.16.19"]},{"certainty":"source_listed","source_ids":["sr-fc81f3e6e6380a85da2c35b9b9cc304a"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"A Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes.\n\nTo make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place.\n\nFor this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user.\n\n## References\n\nhttps://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-RC1; fixed 5.8.23"]}],"null_published_at":"2026-10-31T22:13:22.837Z","source_updated_at":"2026-02-24T16:20:27.514Z","source_disclosed_at":"2026-02-23T22:16:22.000Z","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":"2026-10-31T21:41:59.935Z"}],"next_cursor":null,"snapshot_revision":"42594"}