{"items":[{"id":"NVI-00012984","kind":"vulnerability","title":"Jawn: Uncontrolled nesting depth in JSON parser","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-cc4v-rvgp-2pf3","CVE-2026-59990"],"plain_summary":"GitHub lists this reviewed advisory for org.typelevel:jawn-parser_2.12, org.typelevel:jawn-parser_2.13, org.typelevel:jawn-parser_3. 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-0172a86790a2be9f3a25352ef7092129"],"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":"2026-09-23T21:23:57.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2cfc0f15431a927e98056c5b06bf9edf"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.615%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.49512. Missing scores are unknown.","source_id":"sr-0172a86790a2be9f3a25352ef7092129"}],"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-2cfc0f15431a927e98056c5b06bf9edf","url":"https://github.com/advisories/GHSA-cc4v-rvgp-2pf3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-cc4v-rvgp-2pf3","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"},{"id":"sr-0172a86790a2be9f3a25352ef7092129","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-2026-59990","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.789Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_2.12","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]},{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_2.13","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]},{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_3","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]}],"null_published_at":"2026-11-04T10:04:41.532Z","source_updated_at":"2026-09-23T21:23:57.000Z","source_disclosed_at":"2026-09-23T21:23:54.000Z","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":"2026-11-01T07:25:10.521Z"},{"id":"NVI-00012984","kind":"vulnerability","title":"Jawn: Uncontrolled nesting depth in JSON parser","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-cc4v-rvgp-2pf3","CVE-2026-59990"],"plain_summary":"GitHub lists this reviewed advisory for org.typelevel:jawn-parser_2.12, org.typelevel:jawn-parser_2.13, org.typelevel:jawn-parser_3. 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-2cfc0f15431a927e98056c5b06bf9edf"],"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":"2026-09-23T21:23:57.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2cfc0f15431a927e98056c5b06bf9edf"}],"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-2cfc0f15431a927e98056c5b06bf9edf","url":"https://github.com/advisories/GHSA-cc4v-rvgp-2pf3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-cc4v-rvgp-2pf3","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T07:25:10.521Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_2.12","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]},{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_2.13","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]},{"certainty":"source_listed","source_ids":["sr-2cfc0f15431a927e98056c5b06bf9edf"],"technology":"org.typelevel:jawn-parser_3","known_exclusions":[],"conditions_summary":"The Jawn parser before 1.6.1 is vulnerable to a denial of service attack via untrusted input.\n\n### Impact\n\nA remote attacker who can submit JSON to any jawn-backed parse method can exhaust JVM heap and trigger `java.lang.OutOfMemoryError`.  This is treated by Scala as a fatal error and not typically handled by `scala.util.Try` or `cats.effect.IO`.\n\n### Patches\n\nVersion `1.6.1` introduces a configurable nesting-depth limit (`Parser#maxDepth`, default `4096`).  Inputs deeper than the limit fail with a recoverable `ParseException` instead of exhausting heap.\n\nUsers who require deeper nesting may override `maxDepth` on a `Parser` subclass.\n\n### Workarounds\n\n- Enforce an input size limit small enough that the resulting context stack cannot exhaust heap, (e.g. http4s `EntityLimiter`).\n- Pre-scan untrusted input and reject documents whose maximum delimiter nesting exceeds a threshold before handing them to jawn.","public_affected_ranges":["<= 1.6.0"]}],"null_published_at":"2026-11-01T07:29:12.906Z","source_updated_at":"2026-09-23T21:23:57.000Z","source_disclosed_at":"2026-09-23T21:23:54.000Z","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":"2026-11-01T07:25:10.521Z"}],"next_cursor":null,"snapshot_revision":"42594"}