{"items":[{"id":"NVI-00012995","kind":"vulnerability","title":"locutus is vulnerable to Prototype Pollution","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-rxrv-835q-v5mh","CVE-2026-25521"],"plain_summary":"GitHub lists this reviewed advisory for locutus. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0acf3d459ee5757ac8c03291160c1584"],"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":"2026-07-15T02:18:53.903Z","value":"8.8 HIGH (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-53d5b6ee3f65374e6163bbb7665ab111"},{"kind":"CVSS","as_of":"2026-07-15T02:18:53.903Z","value":"9.3 CRITICAL (3.1)","meaning":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c severity; no combined Null risk score.","source_id":"sr-53d5b6ee3f65374e6163bbb7665ab111"},{"kind":"CVSS","as_of":"2026-07-15T02:18:53.903Z","value":"9.4 CRITICAL (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-53d5b6ee3f65374e6163bbb7665ab111"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.314%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.24382. Missing scores are unknown.","source_id":"sr-0acf3d459ee5757ac8c03291160c1584"}],"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-32920a3f23e0dea8fec01e060bdbc486","url":"https://github.com/advisories/GHSA-rxrv-835q-v5mh","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rxrv-835q-v5mh","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"},{"id":"sr-53d5b6ee3f65374e6163bbb7665ab111","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25521","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-25521","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T17:44:02.655Z"},{"id":"sr-0acf3d459ee5757ac8c03291160c1584","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-2026-25521","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.849Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-32920a3f23e0dea8fec01e060bdbc486"],"technology":"locutus","known_exclusions":[],"conditions_summary":"### Summary\nA Prototype Pollution vulnerability exists in the the npm package locutus (>2.0.12). Despite a previous fix that attempted to mitigate Prototype Pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue was fixed in version 2.0.39.\n\n### Details\nThe vulnerability resides in line 77 to 79 of https://github.com/locutusjs/locutus/blob/main/src/php/strings/parse_str.js where includes() function is used to check whether user provided input contain forbidden strings.\n\n### PoC\n\n#### Steps to reproduce\n1. Install latest version of locutus using npm install or cloning from git\n2. Run the following code snippet:\n\n```javascript\nString.prototype.includes = () => false;      \nconsole.log({}.polluted);\nconst locutus = require('locutus');\nlocutus.php.strings.parse_str('constructor[prototype][polluted]=yes');\nconsole.log({}.polluted);  // prints yes -> indicating that the patch was bypassed and Prototype Pollution occurred\n```\n\n#### Expected behavior\nPrototype Pollution should be prevented and {} should not gain new properties.\nThis should be printed on the console:\n```\nunde","public_affected_ranges":[">= 2.0.12, < 2.0.39"]}],"null_published_at":"2026-11-05T19:10:23.269Z","source_updated_at":"2026-10-05T15:34:19.000Z","source_disclosed_at":"2026-02-02T22:21:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T01:39:10.636Z"},{"id":"NVI-00012995","kind":"vulnerability","title":"locutus is vulnerable to Prototype Pollution","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rxrv-835q-v5mh","CVE-2026-25521"],"plain_summary":"GitHub lists this reviewed advisory for locutus. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0acf3d459ee5757ac8c03291160c1584"],"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":"2026-11-02T12:00:30.000Z","value":"0.314%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.24382. Missing scores are unknown.","source_id":"sr-0acf3d459ee5757ac8c03291160c1584"}],"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-32920a3f23e0dea8fec01e060bdbc486","url":"https://github.com/advisories/GHSA-rxrv-835q-v5mh","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rxrv-835q-v5mh","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"},{"id":"sr-0acf3d459ee5757ac8c03291160c1584","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-2026-25521","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.849Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-32920a3f23e0dea8fec01e060bdbc486"],"technology":"locutus","known_exclusions":[],"conditions_summary":"### Summary\nA Prototype Pollution vulnerability exists in the the npm package locutus (>2.0.12). Despite a previous fix that attempted to mitigate Prototype Pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue was fixed in version 2.0.39.\n\n### Details\nThe vulnerability resides in line 77 to 79 of https://github.com/locutusjs/locutus/blob/main/src/php/strings/parse_str.js where includes() function is used to check whether user provided input contain forbidden strings.\n\n### PoC\n\n#### Steps to reproduce\n1. Install latest version of locutus using npm install or cloning from git\n2. Run the following code snippet:\n\n```javascript\nString.prototype.includes = () => false;      \nconsole.log({}.polluted);\nconst locutus = require('locutus');\nlocutus.php.strings.parse_str('constructor[prototype][polluted]=yes');\nconsole.log({}.polluted);  // prints yes -> indicating that the patch was bypassed and Prototype Pollution occurred\n```\n\n#### Expected behavior\nPrototype Pollution should be prevented and {} should not gain new properties.\nThis should be printed on the console:\n```\nunde","public_affected_ranges":[">= 2.0.12, < 2.0.39"]}],"null_published_at":"2026-11-03T17:49:15.038Z","source_updated_at":"2026-10-05T15:34:19.000Z","source_disclosed_at":"2026-02-02T22:21:54.000Z","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":"2026-11-01T01:39:10.636Z"},{"id":"NVI-00012995","kind":"vulnerability","title":"locutus is vulnerable to Prototype Pollution","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rxrv-835q-v5mh","CVE-2026-25521"],"plain_summary":"GitHub lists this reviewed advisory for locutus. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-32920a3f23e0dea8fec01e060bdbc486"],"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":[],"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-32920a3f23e0dea8fec01e060bdbc486","url":"https://github.com/advisories/GHSA-rxrv-835q-v5mh","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-rxrv-835q-v5mh","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:39:10.636Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-32920a3f23e0dea8fec01e060bdbc486"],"technology":"locutus","known_exclusions":[],"conditions_summary":"### Summary\nA Prototype Pollution vulnerability exists in the the npm package locutus (>2.0.12). Despite a previous fix that attempted to mitigate Prototype Pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using String.prototype. This issue was fixed in version 2.0.39.\n\n### Details\nThe vulnerability resides in line 77 to 79 of https://github.com/locutusjs/locutus/blob/main/src/php/strings/parse_str.js where includes() function is used to check whether user provided input contain forbidden strings.\n\n### PoC\n\n#### Steps to reproduce\n1. Install latest version of locutus using npm install or cloning from git\n2. Run the following code snippet:\n\n```javascript\nString.prototype.includes = () => false;      \nconsole.log({}.polluted);\nconst locutus = require('locutus');\nlocutus.php.strings.parse_str('constructor[prototype][polluted]=yes');\nconsole.log({}.polluted);  // prints yes -> indicating that the patch was bypassed and Prototype Pollution occurred\n```\n\n#### Expected behavior\nPrototype Pollution should be prevented and {} should not gain new properties.\nThis should be printed on the console:\n```\nunde","public_affected_ranges":[">= 2.0.12, < 2.0.39"]}],"null_published_at":"2026-11-01T07:29:12.907Z","source_updated_at":"2026-10-05T15:34:19.000Z","source_disclosed_at":"2026-02-02T22:21:54.000Z","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":"2026-11-01T01:39:10.636Z"}],"next_cursor":null,"snapshot_revision":"42594"}