{"items":[{"id":"NVI-00002586","kind":"vulnerability","title":"Validation of SignedInfo","revision":4,"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-ww7x-3gxh-qm6r","CVE-2023-49087"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/saml2. 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 1.6.12 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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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":"2026-06-17T06:35:20.330Z","value":"6.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-a5e792240b9e87b6a1096e09b19607f4"},{"kind":"CVSS","as_of":"2026-06-17T06:35:20.330Z","value":"7.5 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-a5e792240b9e87b6a1096e09b19607f4"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.193%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08955. Missing scores are unknown.","source_id":"sr-19b2c6228ac2131c6deb7edaa808eab2"}],"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-1e4232bf392301c15685b97e4e342233","url":"https://github.com/advisories/GHSA-ww7x-3gxh-qm6r","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-ww7x-3gxh-qm6r","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.436Z"},{"id":"sr-a5e792240b9e87b6a1096e09b19607f4","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-49087","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2023-49087","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T00:58:59.624Z"},{"id":"sr-19b2c6228ac2131c6deb7edaa808eab2","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-2023-49087","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:27:48.610Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 1.6.11; fixed 1.6.12"]},{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.12; fixed 5.0.0-alpha.13"]}],"null_published_at":"2026-11-06T15:18:17.658Z","source_updated_at":"2026-09-10T03:50:04.325Z","source_disclosed_at":"2023-11-28T18:52:19.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:51.436Z"},{"id":"NVI-00002586","kind":"vulnerability","title":"Validation of SignedInfo","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ww7x-3gxh-qm6r","CVE-2023-49087"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/saml2. 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 1.6.12 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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 5.0.0-alpha.13 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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-19b2c6228ac2131c6deb7edaa808eab2"],"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":"2026-11-01T12:00:16.000Z","value":"0.193%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08955. Missing scores are unknown.","source_id":"sr-19b2c6228ac2131c6deb7edaa808eab2"}],"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-1e4232bf392301c15685b97e4e342233","url":"https://github.com/advisories/GHSA-ww7x-3gxh-qm6r","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-ww7x-3gxh-qm6r","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.436Z"},{"id":"sr-19b2c6228ac2131c6deb7edaa808eab2","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-2023-49087","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:27:48.610Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 1.6.11; fixed 1.6.12"]},{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.12; fixed 5.0.0-alpha.13"]}],"null_published_at":"2026-11-04T18:04:03.082Z","source_updated_at":"2026-09-10T03:50:04.325Z","source_disclosed_at":"2023-11-28T18:52:19.000Z","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":"2026-10-31T21:42:51.436Z"},{"id":"NVI-00002586","kind":"vulnerability","title":"Validation of SignedInfo","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ww7x-3gxh-qm6r","CVE-2023-49087"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/saml2. 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 1.6.12 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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 5.0.0-alpha.13 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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-6b0f27bdbc343e6fe36a6590e5725b8d"],"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":"0.193%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.08958. Missing scores are unknown.","source_id":"sr-6b0f27bdbc343e6fe36a6590e5725b8d"}],"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-1e4232bf392301c15685b97e4e342233","url":"https://github.com/advisories/GHSA-ww7x-3gxh-qm6r","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-ww7x-3gxh-qm6r","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.436Z"},{"id":"sr-6b0f27bdbc343e6fe36a6590e5725b8d","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-2023-49087","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 1.6.11; fixed 1.6.12"]},{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.12; fixed 5.0.0-alpha.13"]}],"null_published_at":"2026-11-01T19:14:01.569Z","source_updated_at":"2026-09-10T03:50:04.325Z","source_disclosed_at":"2023-11-28T18:52:19.000Z","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":"2026-10-31T21:42:51.436Z"},{"id":"NVI-00002586","kind":"vulnerability","title":"Validation of SignedInfo","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ww7x-3gxh-qm6r","CVE-2023-49087"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/saml2. 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 1.6.12 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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 5.0.0-alpha.13 for simplesamlphp/saml2. Confirm the publisher’s latest guidance.","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"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-1e4232bf392301c15685b97e4e342233","url":"https://github.com/advisories/GHSA-ww7x-3gxh-qm6r","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-ww7x-3gxh-qm6r","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:51.436Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 1.6.11; fixed 1.6.12"]},{"certainty":"source_listed","source_ids":["sr-1e4232bf392301c15685b97e4e342233"],"technology":"simplesamlphp/saml2","known_exclusions":[],"conditions_summary":"Validation of an XML Signature requires verification that the hash value of the related XML-document (after any optional transformations and/or normalizations) matches a specific DigestValue-value, but also that the cryptografic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key.\n\nWithin the simpleSAMLphp/xml-security library (https://github.com/simplesamlphp/xml-security), the hash is being validated using SignedElementTrait::validateReference, and the signature is being verified in SignedElementTrait::verifyInternal\n\nhttps://github.com/simplesamlphp/xml-security/blob/master/src/XML/SignedElementTrait.php:\n\n!afbeelding\n\nWhat stands out is that the signature is being calculated over the canonical version of the SignedInfo-tree. The validateReference method, however, uses the original non-canonicalized version of SignedInfo.\n\n### Impact\nIf an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it would be potentially be possible t","public_affected_ranges":["ECOSYSTEM: introduced 5.0.0-alpha.12; fixed 5.0.0-alpha.13"]}],"null_published_at":"2026-10-31T22:00:33.896Z","source_updated_at":"2026-09-10T03:50:04.325Z","source_disclosed_at":"2023-11-28T18:52:19.000Z","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":"2026-10-31T21:42:51.436Z"}],"next_cursor":null,"snapshot_revision":"42594"}