FasterXML Jackson 1.x, confirmed in jackson-mapper-asl versions 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13, allows attackers to cause a denial of service by supplying deeply nested JSON input to an application that deserializes untrusted JSON using ObjectMapper.readValue.
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Fixes

Solution

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Workaround

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History

Fri, 16 Oct 2026 22:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Deeply Nested JSON in FasterXML Jackson 1.x

Thu, 15 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-674
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Thu, 15 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Description FasterXML Jackson 1.x, confirmed in jackson-mapper-asl versions 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13, allows attackers to cause a denial of service by supplying deeply nested JSON input to an application that deserializes untrusted JSON using ObjectMapper.readValue.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-15T19:57:53.490Z

Reserved: 2026-09-22T00:00:00.000Z

Link: CVE-2026-95155

cve-icon Vulnrichment

Updated: 2026-10-15T19:56:34.789Z

cve-icon NVD

Status : Deferred

Published: 2026-10-15T16:18:24.470

Modified: 2026-10-16T19:56:15.773

Link: CVE-2026-95155

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T22:30:14Z

Weaknesses