{"items":[{"id":"NVI-00007529","kind":"vulnerability","title":"SimpleSAMLphp Signature validation bypass","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j4qf-3w33-8cgc","CVE-2017-18122"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/simplesamlphp. 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 1.14.17 for simplesamlphp/simplesamlphp. Confirm the publisher’s latest guidance.","source_ids":["sr-df1e6043171068469d3049d1d5c67d90"],"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-3d270050dd3e4311a0587d4d9fd23cf8"],"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":"1.093%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.65447. Missing scores are unknown.","source_id":"sr-3d270050dd3e4311a0587d4d9fd23cf8"}],"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-df1e6043171068469d3049d1d5c67d90","url":"https://github.com/advisories/GHSA-j4qf-3w33-8cgc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-j4qf-3w33-8cgc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.436Z"},{"id":"sr-3d270050dd3e4311a0587d4d9fd23cf8","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-2017-18122","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-df1e6043171068469d3049d1d5c67d90"],"technology":"simplesamlphp/simplesamlphp","known_exclusions":[],"conditions_summary":"A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.14.17"]}],"null_published_at":"2026-10-31T22:27:15.300Z","source_updated_at":"2024-04-25T21:26:45.023Z","source_disclosed_at":"2022-05-14T01:04:08.000Z","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":"2026-10-31T21:42:20.436Z"},{"id":"NVI-00007529","kind":"vulnerability","title":"SimpleSAMLphp Signature validation bypass","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j4qf-3w33-8cgc","CVE-2017-18122"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/simplesamlphp. 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 1.14.17 for simplesamlphp/simplesamlphp. Confirm the publisher’s latest guidance.","source_ids":["sr-df1e6043171068469d3049d1d5c67d90"],"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-df1e6043171068469d3049d1d5c67d90","url":"https://github.com/advisories/GHSA-j4qf-3w33-8cgc","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-j4qf-3w33-8cgc","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:20.436Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-df1e6043171068469d3049d1d5c67d90"],"technology":"simplesamlphp/simplesamlphp","known_exclusions":[],"conditions_summary":"A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.14.17"]}],"null_published_at":"2026-10-31T22:13:18.623Z","source_updated_at":"2024-04-25T21:26:45.023Z","source_disclosed_at":"2022-05-14T01:04:08.000Z","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":"2026-10-31T21:42:20.436Z"}],"next_cursor":null,"snapshot_revision":"42594"}