PT-2026-23093 · Fasterxml+1 · Jackson-Core+1

Rohan-Repos + 1 · CVE-2026-29062 · Published 2026-03-04 · Updated 2026-06-18

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions jackson-core versions 3.0.0 through 3.0.x

Description jackson-core contains core low-level incremental ("streaming") parser and generator abstractions. The UTF8DataInputJsonParser and ReaderBasedJsonParser bypass the maxNestingDepth constraint defined in StreamReadConstraints. 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). The maxNestingDepth constraint has a default value of 500. The issue was addressed by adding a check that throws a StreamConstraintsException if the limit is reached.

Recommendations jackson-core versions 3.0.0 through 3.0.x should be upgraded to version 3.1.0 or later.

Exploit

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-1284

CWE-770

Related Identifiers

CVE-2026-29062

GHSA-6V53-7C9G-W56R

Affected Products

Confluence

Jackson-Core

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29062.json · Exploit
• https://github.com/FasterXML/jackson-core/pull/1554 · Patch
• https://github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r · Vendor Advisory
• https://github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a902 · Patch
• https://osv.dev/vulnerability/ROOT-APP-MAVEN-CVE-2026-29062 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-52999 · Security Note
• https://osv.dev/vulnerability/CVE-2026-29062 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-29062 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-29062 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-29062 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-29062 · Security Note
• https://osv.dev/vulnerability/GHSA-6v53-7c9g-w56r · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-29062 · Security Note
• https://github.com/FasterXML/jackson-core/security/advisories/GHSA-h46c-h94j-95f3 · Note
• https://github.com/FasterXML/jackson-core · Note