{"items":[{"id":"NVI-00007134","kind":"vulnerability","title":"Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)","revision":5,"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-8jqh-95g6-7jpj","CVE-2026-54736"],"plain_summary":"OSV carries this publisher advisory for phalcon/cphalcon. 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 5.14.1 for phalcon/cphalcon. Confirm the publisher’s latest guidance.","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"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-0865de71d6ced698f4b45ad1066e1eb7"],"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":"2026-10-25T15:10:00.147Z","value":"8.2 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-bb5a843718170e9d8a0f3bbbe04c3245"},{"kind":"EPSS","as_of":"2026-11-06T12:00:23.000Z","value":"0.180%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07676. Missing scores are unknown.","source_id":"sr-0865de71d6ced698f4b45ad1066e1eb7"}],"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-d0101c54dd4ac9723ea04e7fe959a076","url":"https://github.com/advisories/GHSA-8jqh-95g6-7jpj","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8jqh-95g6-7jpj","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.671Z"},{"id":"sr-bb5a843718170e9d8a0f3bbbe04c3245","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54736","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54736","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:31.710Z"},{"id":"sr-0865de71d6ced698f4b45ad1066e1eb7","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-2026-54736","publisher":"FIRST EPSS","observed_at":"2026-11-07T00:50:47.041Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"technology":"phalcon/cphalcon","known_exclusions":[],"conditions_summary":"## Summary\n\n`Phalcon\\Encryption\\Crypt` provides authenticated encryption: when `useSigning` is enabled (the default), `encrypt()` appends an HMAC tag and `decrypt()` verifies it before returning the plaintext. The verification compares the attacker-supplied tag against the freshly computed HMAC using PHP/Zephir identity comparison (`!==`), which the Zephir compiler lowers to `!ZEPHIR_IS_IDENTICAL(...)` — a byte-wise `memcmp` that returns early on the first differing byte. The comparison time therefore depends on how many leading bytes of the supplied tag are correct, a classic MAC-verification timing side-channel. Every other secret/MAC comparison in the framework uses the constant-time `hash_equals()` (`zephir_hash_equals`) — the CSRF token check (`Security::checkToken`) and the JWT signature check (`Signer\\Hmac::verify`); `Crypt::decrypt` is the lone deviation.\n\n## Details\n\n### Vulnerable code\n\n`phalcon/Encryption/Crypt.zep:246` (Zephir source):\n\n```zephir\nif true === this->useSigning {\n    // Checks on the decrypted message digest using the HMAC method.\n    if digest !== hash_hmac(hashAlgorithm, padded, decryptKey, true) {\n        throw new Mismatch(\"Hash does not match.\");\n    ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.14.1"]}],"null_published_at":"2026-11-09T02:49:35.964Z","source_updated_at":"2026-08-28T16:15:06.432Z","source_disclosed_at":"2026-08-28T16:01:05.000Z","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":"2026-10-31T21:42:10.671Z"},{"id":"NVI-00007134","kind":"vulnerability","title":"Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)","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-8jqh-95g6-7jpj","CVE-2026-54736"],"plain_summary":"OSV carries this publisher advisory for phalcon/cphalcon. 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 5.14.1 for phalcon/cphalcon. Confirm the publisher’s latest guidance.","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"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-1c117a100f6e23ec6189670391b087a0"],"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":"2026-10-25T15:10:00.147Z","value":"8.2 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-bb5a843718170e9d8a0f3bbbe04c3245"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.180%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07663. Missing scores are unknown.","source_id":"sr-1c117a100f6e23ec6189670391b087a0"}],"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-d0101c54dd4ac9723ea04e7fe959a076","url":"https://github.com/advisories/GHSA-8jqh-95g6-7jpj","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8jqh-95g6-7jpj","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.671Z"},{"id":"sr-bb5a843718170e9d8a0f3bbbe04c3245","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54736","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54736","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:31.710Z"},{"id":"sr-1c117a100f6e23ec6189670391b087a0","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-2026-54736","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.788Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"technology":"phalcon/cphalcon","known_exclusions":[],"conditions_summary":"## Summary\n\n`Phalcon\\Encryption\\Crypt` provides authenticated encryption: when `useSigning` is enabled (the default), `encrypt()` appends an HMAC tag and `decrypt()` verifies it before returning the plaintext. The verification compares the attacker-supplied tag against the freshly computed HMAC using PHP/Zephir identity comparison (`!==`), which the Zephir compiler lowers to `!ZEPHIR_IS_IDENTICAL(...)` — a byte-wise `memcmp` that returns early on the first differing byte. The comparison time therefore depends on how many leading bytes of the supplied tag are correct, a classic MAC-verification timing side-channel. Every other secret/MAC comparison in the framework uses the constant-time `hash_equals()` (`zephir_hash_equals`) — the CSRF token check (`Security::checkToken`) and the JWT signature check (`Signer\\Hmac::verify`); `Crypt::decrypt` is the lone deviation.\n\n## Details\n\n### Vulnerable code\n\n`phalcon/Encryption/Crypt.zep:246` (Zephir source):\n\n```zephir\nif true === this->useSigning {\n    // Checks on the decrypted message digest using the HMAC method.\n    if digest !== hash_hmac(hashAlgorithm, padded, decryptKey, true) {\n        throw new Mismatch(\"Hash does not match.\");\n    ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.14.1"]}],"null_published_at":"2026-11-07T14:01:55.400Z","source_updated_at":"2026-08-28T16:15:06.432Z","source_disclosed_at":"2026-08-28T16:01:05.000Z","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":"2026-10-31T21:42:10.671Z"},{"id":"NVI-00007134","kind":"vulnerability","title":"Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)","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-8jqh-95g6-7jpj","CVE-2026-54736"],"plain_summary":"OSV carries this publisher advisory for phalcon/cphalcon. 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 5.14.1 for phalcon/cphalcon. Confirm the publisher’s latest guidance.","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"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-b04874ed9e76b635da4e3b9fe4183a7b"],"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":"2026-10-25T15:10:00.147Z","value":"8.2 HIGH (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-bb5a843718170e9d8a0f3bbbe04c3245"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.180%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07619. Missing scores are unknown.","source_id":"sr-b04874ed9e76b635da4e3b9fe4183a7b"}],"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-d0101c54dd4ac9723ea04e7fe959a076","url":"https://github.com/advisories/GHSA-8jqh-95g6-7jpj","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8jqh-95g6-7jpj","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.671Z"},{"id":"sr-bb5a843718170e9d8a0f3bbbe04c3245","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54736","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-54736","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:31.710Z"},{"id":"sr-b04874ed9e76b635da4e3b9fe4183a7b","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-2026-54736","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"technology":"phalcon/cphalcon","known_exclusions":[],"conditions_summary":"## Summary\n\n`Phalcon\\Encryption\\Crypt` provides authenticated encryption: when `useSigning` is enabled (the default), `encrypt()` appends an HMAC tag and `decrypt()` verifies it before returning the plaintext. The verification compares the attacker-supplied tag against the freshly computed HMAC using PHP/Zephir identity comparison (`!==`), which the Zephir compiler lowers to `!ZEPHIR_IS_IDENTICAL(...)` — a byte-wise `memcmp` that returns early on the first differing byte. The comparison time therefore depends on how many leading bytes of the supplied tag are correct, a classic MAC-verification timing side-channel. Every other secret/MAC comparison in the framework uses the constant-time `hash_equals()` (`zephir_hash_equals`) — the CSRF token check (`Security::checkToken`) and the JWT signature check (`Signer\\Hmac::verify`); `Crypt::decrypt` is the lone deviation.\n\n## Details\n\n### Vulnerable code\n\n`phalcon/Encryption/Crypt.zep:246` (Zephir source):\n\n```zephir\nif true === this->useSigning {\n    // Checks on the decrypted message digest using the HMAC method.\n    if digest !== hash_hmac(hashAlgorithm, padded, decryptKey, true) {\n        throw new Mismatch(\"Hash does not match.\");\n    ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.14.1"]}],"null_published_at":"2026-11-06T15:18:17.700Z","source_updated_at":"2026-08-28T16:15:06.432Z","source_disclosed_at":"2026-08-28T16:01:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:10.671Z"},{"id":"NVI-00007134","kind":"vulnerability","title":"Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8jqh-95g6-7jpj","CVE-2026-54736"],"plain_summary":"OSV carries this publisher advisory for phalcon/cphalcon. 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 5.14.1 for phalcon/cphalcon. Confirm the publisher’s latest guidance.","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"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-b04874ed9e76b635da4e3b9fe4183a7b"],"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":"0.180%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.07619. Missing scores are unknown.","source_id":"sr-b04874ed9e76b635da4e3b9fe4183a7b"}],"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-d0101c54dd4ac9723ea04e7fe959a076","url":"https://github.com/advisories/GHSA-8jqh-95g6-7jpj","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8jqh-95g6-7jpj","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.671Z"},{"id":"sr-b04874ed9e76b635da4e3b9fe4183a7b","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-2026-54736","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"technology":"phalcon/cphalcon","known_exclusions":[],"conditions_summary":"## Summary\n\n`Phalcon\\Encryption\\Crypt` provides authenticated encryption: when `useSigning` is enabled (the default), `encrypt()` appends an HMAC tag and `decrypt()` verifies it before returning the plaintext. The verification compares the attacker-supplied tag against the freshly computed HMAC using PHP/Zephir identity comparison (`!==`), which the Zephir compiler lowers to `!ZEPHIR_IS_IDENTICAL(...)` — a byte-wise `memcmp` that returns early on the first differing byte. The comparison time therefore depends on how many leading bytes of the supplied tag are correct, a classic MAC-verification timing side-channel. Every other secret/MAC comparison in the framework uses the constant-time `hash_equals()` (`zephir_hash_equals`) — the CSRF token check (`Security::checkToken`) and the JWT signature check (`Signer\\Hmac::verify`); `Crypt::decrypt` is the lone deviation.\n\n## Details\n\n### Vulnerable code\n\n`phalcon/Encryption/Crypt.zep:246` (Zephir source):\n\n```zephir\nif true === this->useSigning {\n    // Checks on the decrypted message digest using the HMAC method.\n    if digest !== hash_hmac(hashAlgorithm, padded, decryptKey, true) {\n        throw new Mismatch(\"Hash does not match.\");\n    ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.14.1"]}],"null_published_at":"2026-11-05T03:52:54.774Z","source_updated_at":"2026-08-28T16:15:06.432Z","source_disclosed_at":"2026-08-28T16:01:05.000Z","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":"2026-10-31T21:42:10.671Z"},{"id":"NVI-00007134","kind":"vulnerability","title":"Phalcon: Non-constant-time HMAC verification in `Encryption\\Crypt::decrypt` (timing side-channel)","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8jqh-95g6-7jpj","CVE-2026-54736"],"plain_summary":"OSV carries this publisher advisory for phalcon/cphalcon. 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 5.14.1 for phalcon/cphalcon. Confirm the publisher’s latest guidance.","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"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-d0101c54dd4ac9723ea04e7fe959a076","url":"https://github.com/advisories/GHSA-8jqh-95g6-7jpj","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-8jqh-95g6-7jpj","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:10.671Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d0101c54dd4ac9723ea04e7fe959a076"],"technology":"phalcon/cphalcon","known_exclusions":[],"conditions_summary":"## Summary\n\n`Phalcon\\Encryption\\Crypt` provides authenticated encryption: when `useSigning` is enabled (the default), `encrypt()` appends an HMAC tag and `decrypt()` verifies it before returning the plaintext. The verification compares the attacker-supplied tag against the freshly computed HMAC using PHP/Zephir identity comparison (`!==`), which the Zephir compiler lowers to `!ZEPHIR_IS_IDENTICAL(...)` — a byte-wise `memcmp` that returns early on the first differing byte. The comparison time therefore depends on how many leading bytes of the supplied tag are correct, a classic MAC-verification timing side-channel. Every other secret/MAC comparison in the framework uses the constant-time `hash_equals()` (`zephir_hash_equals`) — the CSRF token check (`Security::checkToken`) and the JWT signature check (`Signer\\Hmac::verify`); `Crypt::decrypt` is the lone deviation.\n\n## Details\n\n### Vulnerable code\n\n`phalcon/Encryption/Crypt.zep:246` (Zephir source):\n\n```zephir\nif true === this->useSigning {\n    // Checks on the decrypted message digest using the HMAC method.\n    if digest !== hash_hmac(hashAlgorithm, padded, decryptKey, true) {\n        throw new Mismatch(\"Hash does not match.\");\n    ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 5.14.1"]}],"null_published_at":"2026-10-31T22:13:14.313Z","source_updated_at":"2026-08-28T16:15:06.432Z","source_disclosed_at":"2026-08-28T16:01:05.000Z","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":"2026-10-31T21:42:10.671Z"}],"next_cursor":null,"snapshot_revision":"44495"}