Resource exhaustion in Fasterxml Jackson-Core
CVE-2026-29062
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (49.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.006 · change: -0.002
Affected products
- Fasterxml Jackson-Core — versions >= 3.0.0, < 3.1.0
Weakness classification (CWE)
References
- github.com/FasterXML/jackson-core/security/advisories/GHSA-6v53-7c9g-w56r (Patch, Vendor Advisory)
- github.com/FasterXML/jackson-core/pull/1554 (Patch, Issue Tracking)
- github.com/FasterXML/jackson-core/commit/8b25fd67f20583e75fb09564ce1eaab06cd5a9… (Patch)
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Frequently asked questions
- What is CVE-2026-29062?
- CVE-2026-29062 is a high-severity vulnerability in Fasterxml Jackson-Core, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-03-06.
- How severe is CVE-2026-29062?
- High severity. CVSS v3 base score is 7.5 out of 10.