{"id":"GHSA-6v53-7c9g-w56r","summary":"jackson-core has Nesting Depth Constraint Bypass in `UTF8DataInputJsonParser` potentially allowing Resource Exhaustion","details":"### 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","aliases":["CVE-2026-29062"],"modified":"2026-07-17T21:11:25.826413086Z","published":"2026-03-04T21:23:45Z","database_specific":{"github_reviewed_at":"2026-03-04T21:23:45Z","nvd_published_at":"2026-03-06T08:16:26Z","cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r"},{"type":"WEB","url":"https://github.com/FasterXML/jackson-core/security/advisories/GHSA-h46c-h94j-95f3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52999"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29062"},{"type":"WEB","url":"https://github.com/FasterXML/jackson-core/pull/1554"},{"type":"WEB","url":"https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a902"},{"type":"PACKAGE","url":"https://github.com/FasterXML/jackson-core"}],"affected":[{"package":{"name":"tools.jackson.core:jackson-core","ecosystem":"Maven","purl":"pkg:maven/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"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-6v53-7c9g-w56r/GHSA-6v53-7c9g-w56r.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}