Denial of Service Vulnerability in FasterXML Jackson Product
CVE-2026-95155

7.5HIGH

Key Information:

Vendor

FasterXML

Status
Jackson
Vendor
CVE Published:
15 October 2026

What is CVE-2026-95155?

A vulnerability in FasterXML Jackson allows for denial of service attacks by sending deeply nested JSON input to applications that utilize the ObjectMapper.readValue method for deserialization. This can lead to excessive resource consumption, potentially causing applications to crash or become unresponsive. The issue has been confirmed in multiple versions, making it essential for developers to ensure their applications are protected against such payloads.

References

https://github.com/FasterXML/jackson-1
https://github.com/FasterXML/jackson-1/issues/11

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.