{"id":"CVE-2026-29062","aliases":["EUVD-2026-10018","GHSA-6v53-7c9g-w56r","ROOT-APP-MAVEN-CVE-2026-29062","UBUNTU-CVE-2026-29062"],"status":"published","title":"jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00614,"percentile":0.49684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1284","CWE-770"],"published":"2026-03-04T21:23:45Z","modified":"2026-10-28T11:10:06Z","fixes":[{"ecosystem":"Maven","package":"tools.jackson.core:jackson-core","fixed_in":["3.1.0"],"sources":["ghsa","osv"]},{"ecosystem":"Root:Maven","package":"tools.jackson.core:jackson-core","fixed_in":["3.1.0-aikido.2","3.1.0-aikido.3"],"sources":["osv"]},{"ecosystem":"Root:Maven","package":"io.root.tools.jackson.core:jackson-core","fixed_in":["3.1.0-root.io.1","3.1.0-root.io.2","3.1.0-root.io.3"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"tools.jackson.core:jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.0"}]}]},{"source":"osv","ecosystem":"Maven","package":"tools.jackson.core:jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.0"}]}],"versions":["3.0.0","3.0.1","3.0.2","3.0.3","3.0.4","3.1.0-rc1"]},{"source":"osv","ecosystem":"Root:Maven","package":"tools.jackson.core:jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-aikido.2"},{"fixed":"3.1.0-aikido.3"}]}]},{"source":"osv","ecosystem":"Root:Maven","package":"io.root.tools.jackson.core:jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.0-root.io.1"},{"fixed":"3.1.0-root.io.2"},{"fixed":"3.1.0-root.io.3"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.2-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.8.6-1","2.9.1-1","2.9.4-1","2.9.8-3~18.04"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.9.8-3","2.10.0-1","2.10.1-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12.1-1","2.13.0-1","2.13.0-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.1-1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.1-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.1-1build1","2.14.1-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"jackson-core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.14.1-1","2.14.1-1build1"]}],"products":[{"vendor":"fasterxml","product":"jackson-core"},{"vendor":"red hat","product":"red hat certificate system 10"},{"vendor":"red hat","product":"red hat enterprise linux 10"},{"vendor":"red hat","product":"red hat enterprise linux 8"},{"vendor":"red hat","product":"red hat enterprise linux 9"}],"references":[{"url":"https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r","tags":["x_refsource_CONFIRM","Patch","Vendor Advisory","advisory","web","report"]},{"url":"https://github.com/FasterXML/jackson-core/pull/1554","tags":["x_refsource_MISC","Issue Tracking","Patch","fix","web","report"]},{"url":"https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a902","tags":["x_refsource_MISC","Patch","fix","web","report"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-29062","tags":["vdb-entry","x_refsource_REDHAT","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2445135","tags":["issue-tracking","x_refsource_REDHAT","report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29062.json","tags":["x_sadp-csaf-vex","web"]},{"url":"https://github.com/FasterXML/jackson-core/security/advisories/GHSA-h46c-h94j-95f3","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52999","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29062","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6v53-7c9g-w56r"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29062.json","tags":["advisory"]},{"url":"https://github.com/FasterXML/jackson-core","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2026-29062","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-29062","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-29062","title":"jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","status":"published","published":"2026-03-06T07:14:25.059Z","modified":"2026-07-15T01:10:47.357Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-770","CWE-1284"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-10018","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","status":"published","published":"2026-03-06T07:14:25Z","modified":"2026-07-15T01:10:47Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:19:55.842782Z"}],"ghsa":[{"id":"GHSA-6v53-7c9g-w56r","title":"jackson-core has Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","description":"### Summary\nThe `UTF8DataInputJsonParser`, which is used when parsing from a `java.io.DataInput` source, bypasses the `maxNestingDepth` constraint (default: 500) defined in `StreamReadConstraints`.\n\nA similar issue was found in `ReaderBasedJsonParser`.\n\nThis allows a user to supply a JSON document with excessive nesting, which can cause a `StackOverflowError` when the structure is processed, leading to a Denial of Service (DoS).\n\nThe related fix for com.fasterxml.jackson.core:jackson-core, CVE-2025-52999, was not fully applied to tools.jackson.core:jackson-core until the 3.1.0 release. It is recommended that 3.0.x users upgrade.\n\n### Patches\njackson-core contains a configurable limit for how deep Jackson will traverse in an input document. This check was missing in a few places in tools.jackson.core:jackson-core. \n\nThe change is in https://github.com/FasterXML/jackson-core/pull/1554. jackson-core will throw a StreamConstraintsException if the limit is reached.\n\njackson-databind also benefits from this change because it uses jackson-core to parse JSON inputs.\n\n### Workarounds\nUsers should avoid parsing input files from untrusted sources.\n\n### Resources\n[GHSA-6v53-7c9g-w56r](https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r)\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-52999\nhttps://github.com/FasterXML/jackson-core/pull/1554","status":"published","published":"2026-03-04T21:23:45Z","modified":"2026-03-06T21:58:01Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:39:32.329372Z"}],"nvd":[{"id":"CVE-2026-29062","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","status":"published","published":"2026-03-06T08:16:26.603Z","modified":"2026-07-15T02:19:22.353Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-770","CWE-1284"],"updated_at":"2026-11-02T14:12:08.279852Z"}],"osv":[{"id":"CVE-2026-29062","title":"jackson-core: Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","status":"published","published":"2026-03-06T07:14:25.059Z","modified":"2026-10-28T11:10:06.777294892Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:45:00.530889Z"},{"id":"GHSA-6v53-7c9g-w56r","title":"jackson-core has Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","description":"### Summary\nThe `UTF8DataInputJsonParser`, which is used when parsing from a `java.io.DataInput` source, bypasses the `maxNestingDepth` constraint (default: 500) defined in `StreamReadConstraints`.\n\nA similar issue was found in `ReaderBasedJsonParser`.\n\nThis allows a user to supply a JSON document with excessive nesting, which can cause a `StackOverflowError` when the structure is processed, leading to a Denial of Service (DoS).\n\nThe related fix for com.fasterxml.jackson.core:jackson-core, CVE-2025-52999, was not fully applied to tools.jackson.core:jackson-core until the 3.1.0 release. It is recommended that 3.0.x users upgrade.\n\n### Patches\njackson-core contains a configurable limit for how deep Jackson will traverse in an input document. This check was missing in a few places in tools.jackson.core:jackson-core. \n\nThe change is in https://github.com/FasterXML/jackson-core/pull/1554. jackson-core will throw a StreamConstraintsException if the limit is reached.\n\njackson-databind also benefits from this change because it uses jackson-core to parse JSON inputs.\n\n### Workarounds\nUsers should avoid parsing input files from untrusted sources.\n\n### Resources\n[GHSA-6v53-7c9g-w56r](https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r)\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-52999\nhttps://github.com/FasterXML/jackson-core/pull/1554","status":"published","published":"2026-03-04T21:23:45Z","modified":"2026-09-10T03:50:37.832407787Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:46:39.965326Z"},{"id":"UBUNTU-CVE-2026-29062","description":"jackson-core contains core low-level incremental (\"streaming\") parser and generator abstractions used by Jackson Data Processor. From version 3.0.0 to before version 3.1.0, the UTF8DataInputJsonParser, which is used when parsing from a java.io.DataInput source, bypasses the maxNestingDepth constraint (default: 500) defined in StreamReadConstraints. A similar issue was found in ReaderBasedJsonParser. This allows a user to supply a JSON document with excessive nesting, which can cause a StackOverflowError when the structure is processed, leading to a Denial of Service (DoS). This issue has been patched in version 3.1.0.","status":"published","published":"2026-03-06T08:16:00Z","modified":"2026-10-17T12:59:57.42354385Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:11.640778Z"},{"id":"ROOT-APP-MAVEN-CVE-2026-29062","title":"CVE-2026-29062 in tools.jackson.core:jackson-core - Patched by Root","description":"Root has patched CVE-2026-29062 in the tools.jackson.core:jackson-core package for Root:Maven. Multiple fixed versions available.","status":"published","published":"2026-08-04T11:44:41Z","modified":"2026-08-04T13:15:22.614870956Z","updated_at":"2026-11-02T15:53:27.066589Z"}]}}