CVE-2026-95155 FasterXML Jackson - Denial of Service

FasterXML Jackson 1.x including jackson-mapper-asl 1.8.3, 1.9.2, 1.9.11, 1.9.12, and 1.9.13 contains a denial of service caused by processing deeply nested JSON input in ObjectMapper.readValue, letting attackers cause application crash, exploit requires deserialization of untrusted JSON.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Insecure Deserialization
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
15 October 2026
Updated
16 October 2026
Weakness
CWE-674

Vendor fix

Update to the latest version of FasterXML Jackson.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs