{"items":[{"id":"NVI-00005434","kind":"vulnerability","title":"simplesamlphp/xml-security: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r353-4845-pr5p","CVE-2026-32600"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/xml-security. 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 2.3.1 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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 1.13.9 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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-3be3a75570e1106a7b7d31807f2af2c3"],"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":"0.151%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.0424. Missing scores are unknown.","source_id":"sr-3be3a75570e1106a7b7d31807f2af2c3"}],"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-8f70d7b3c5f7719af0712b48978ab820","url":"https://github.com/advisories/GHSA-r353-4845-pr5p","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-r353-4845-pr5p","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.355Z"},{"id":"sr-3be3a75570e1106a7b7d31807f2af2c3","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-2026-32600","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.272Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 2.0.0; fixed 2.3.1"]},{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.13.9"]}],"null_published_at":"2026-11-08T19:53:48.762Z","source_updated_at":"2026-03-16T22:16:26.818Z","source_disclosed_at":"2026-03-13T20:44:21.000Z","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":"2026-10-31T21:42:41.355Z"},{"id":"NVI-00005434","kind":"vulnerability","title":"simplesamlphp/xml-security: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r353-4845-pr5p","CVE-2026-32600"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/xml-security. 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 2.3.1 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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 1.13.9 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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-49a13063680298c90d1a9c24531f11a9"],"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":"0.151%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.04234. Missing scores are unknown.","source_id":"sr-49a13063680298c90d1a9c24531f11a9"}],"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-8f70d7b3c5f7719af0712b48978ab820","url":"https://github.com/advisories/GHSA-r353-4845-pr5p","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-r353-4845-pr5p","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.355Z"},{"id":"sr-49a13063680298c90d1a9c24531f11a9","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-2026-32600","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.377Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 2.0.0; fixed 2.3.1"]},{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.13.9"]}],"null_published_at":"2026-10-31T23:18:17.260Z","source_updated_at":"2026-03-16T22:16:26.818Z","source_disclosed_at":"2026-03-13T20:44:21.000Z","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":"2026-10-31T21:42:41.355Z"},{"id":"NVI-00005434","kind":"vulnerability","title":"simplesamlphp/xml-security: Missing AES-GCM Authentication Tag Validation on Encrypted Nodes Allows for Unauthorized Decryption","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-r353-4845-pr5p","CVE-2026-32600"],"plain_summary":"OSV carries this publisher advisory for simplesamlphp/xml-security, simplesamlphp/xml-security. 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 2.3.1 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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 1.13.9 for simplesamlphp/xml-security. Confirm the publisher’s latest guidance.","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"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-8f70d7b3c5f7719af0712b48978ab820","url":"https://github.com/advisories/GHSA-r353-4845-pr5p","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-r353-4845-pr5p","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.355Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 2.0.0; fixed 2.3.1"]},{"certainty":"source_listed","source_ids":["sr-8f70d7b3c5f7719af0712b48978ab820"],"technology":"simplesamlphp/xml-security","known_exclusions":[],"conditions_summary":"### Summary\n\nXML nodes encrypted with either aes-128-gcm, aes-192-gcm, or aes-256-gcm lack validation of the authentication tag length.\nAn attacker can use this to brute-force an authentication tag, recover the GHASH key, and decrypt the encrypted nodes.\nIt also allows to forge arbitrary ciphertexts without knowing the encryption key.\n\n### Details\n\nWhen decrypting with either aes-128-gcm, aes-192-gcm, or aes-256-gcm here, the $authTag is set from a substr(), but never has its length validated (it should be validated with something like strlen($authTag) == self::AUTHTAG_LENGTH).\nFor that reason, a shorter than expected data blob will allow for the $authTag to have as short a tag as only one byte (see [PHP's documentation](https://www.php.net/manual/en/function.openssl-decrypt.php#:~:text=The%20length%20of%20the%20tag%20is%20not%20checked%20by%20the%20function.%20It%20is%20the%20caller%27s%20responsibility%20to%20ensure%20that%20the%20length%20of%20the%","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 1.13.9"]}],"null_published_at":"2026-10-31T22:13:01.464Z","source_updated_at":"2026-03-16T22:16:26.818Z","source_disclosed_at":"2026-03-13T20:44:21.000Z","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":"2026-10-31T21:42:41.355Z"}],"next_cursor":null,"snapshot_revision":"42594"}