{"items":[{"id":"NVI-00013072","kind":"vulnerability","title":"JLine: ReDoS in Nano Editor Regex Search Mode","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-ph9c-7hw9-vhhw","CVE-2026-77421"],"plain_summary":"GitHub lists this reviewed advisory for org.jline:jline-builtins, org.jline:jline-builtins. 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-0385a540b4ea727e77c08f0bbad9fcb4"],"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":"2026-09-23T18:12:39.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5301d6c3703760f1c0f65eefded63ef3"},{"kind":"CVSS","as_of":"2026-09-30T16:44:39.840Z","value":"6.5 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-69103be262790aecedf8b7c7fa3cee0a"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.434%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.37846. Missing scores are unknown.","source_id":"sr-0385a540b4ea727e77c08f0bbad9fcb4"}],"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-5301d6c3703760f1c0f65eefded63ef3","url":"https://github.com/advisories/GHSA-ph9c-7hw9-vhhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-ph9c-7hw9-vhhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-69103be262790aecedf8b7c7fa3cee0a","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77421","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-77421","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T09:59:04.406Z"},{"id":"sr-0385a540b4ea727e77c08f0bbad9fcb4","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-2026-77421","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.398Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 4.0.0, < 4.3.1"]},{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 3.0.0, < 3.30.15"]}],"null_published_at":"2026-11-07T07:07:42.544Z","source_updated_at":"2026-09-23T18:12:39.000Z","source_disclosed_at":"2026-09-23T18:12:38.000Z","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":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013072","kind":"vulnerability","title":"JLine: ReDoS in Nano Editor Regex Search Mode","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ph9c-7hw9-vhhw","CVE-2026-77421"],"plain_summary":"GitHub lists this reviewed advisory for org.jline:jline-builtins, org.jline:jline-builtins. 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-003cd28e347c7ad29dce00b2986abbb8"],"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":"2026-09-23T18:12:39.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5301d6c3703760f1c0f65eefded63ef3"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.434%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.37829. Missing scores are unknown.","source_id":"sr-003cd28e347c7ad29dce00b2986abbb8"}],"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-5301d6c3703760f1c0f65eefded63ef3","url":"https://github.com/advisories/GHSA-ph9c-7hw9-vhhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-ph9c-7hw9-vhhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-003cd28e347c7ad29dce00b2986abbb8","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-2026-77421","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.068Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 4.0.0, < 4.3.1"]},{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 3.0.0, < 3.30.15"]}],"null_published_at":"2026-11-06T07:24:11.213Z","source_updated_at":"2026-09-23T18:12:39.000Z","source_disclosed_at":"2026-09-23T18:12:38.000Z","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":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00013072","kind":"vulnerability","title":"JLine: ReDoS in Nano Editor Regex Search Mode","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-ph9c-7hw9-vhhw","CVE-2026-77421"],"plain_summary":"GitHub lists this reviewed advisory for org.jline:jline-builtins, org.jline:jline-builtins. 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-5301d6c3703760f1c0f65eefded63ef3"],"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":"2026-09-23T18:12:39.000Z","value":"6.5 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5301d6c3703760f1c0f65eefded63ef3"}],"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-5301d6c3703760f1c0f65eefded63ef3","url":"https://github.com/advisories/GHSA-ph9c-7hw9-vhhw","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-ph9c-7hw9-vhhw","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 4.0.0, < 4.3.1"]},{"certainty":"source_listed","source_ids":["sr-5301d6c3703760f1c0f65eefded63ef3"],"technology":"org.jline:jline-builtins","known_exclusions":[],"conditions_summary":"### Summary\n\nWhen regex search mode is enabled in the JLine3 `nano` editor, the user-supplied\nsearch term is compiled directly as a Java regular expression with no timeout or\nbacktracking bound. A crafted pattern such as `(a+)+b` can hang the editor session\nthread at high CPU, causing a denial of service for that session.\n\n### Details\n\nIn `builtins/src/main/java/org/jline/builtins/Nano.java`, the search implementation\nuses `Pattern.LITERAL` only when regex mode is disabled. When regex mode is enabled,\nthe search term is compiled as a raw Java regex:\n\n```java\nPattern pat = Pattern.compile(\n        searchTerm,\n        (searchCaseSensitive ? 0 : Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE)\n                | (searchRegexp ? 0 : Pattern.LITERAL));\n```\n\nThis regex is then applied to buffer content. Because Java's regex engine is\nbacktracking-based, nested-quantifier patterns can take exponential time on\nnon-matching input.\n\nAffected source location:\n- `builtins/src/main/java/org/jline/builtins/Nano.java`\n- `doSearch(String text)`\n\n### PoC\n\n1. Create a file containing a long run of `a` characters and open it in the JLine3\n   `nano` editor.\n2. Enable regex search mode with the editor's","public_affected_ranges":[">= 3.0.0, < 3.30.15"]}],"null_published_at":"2026-11-01T07:29:12.915Z","source_updated_at":"2026-09-23T18:12:39.000Z","source_disclosed_at":"2026-09-23T18:12:38.000Z","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":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}