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Vulnerability record · CVE-2026-50193 · published 23 June 2026

CVE-2026-50193: Fasterxml jackson-databind uncontrolled resource consumption vulnerability

Fasterxml · Jackson Databind

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.13.0 until 2.14.0, a potential Denial-of-Service exists when attacker sends deeply nested JSON if (and only if) the service reads deeply nested (1000s of levels) JSON as JsonNode (ObjectMapper.readTree()) and writes out same (or modifided) node using JsonNode.toString(). This can consume significant amount of resources with concurrent relatively small requests (1000 nested arrays is 2kB). This vulnerability is fixed in 2.14.0.

6.3 CVSS 4.0 Medium EPSS 0.62% · top 52.5% CWE-400 · Uncontrolled resource consumption
6.3CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
27 Jun 2026Last modified by NVD

Description

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.13.0 until 2.14.0, a potential Denial-of-Service exists when attacker sends deeply nested JSON if (and only if) the service reads deeply nested (1000s of levels) JSON as JsonNode (ObjectMapper.readTree()) and writes out same (or modifided) node using JsonNode.toString(). This can consume significant amount of resources with concurrent relatively small requests (1000 nested arrays is 2kB). This vulnerability is fixed in 2.14.0.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/FasterXML/jackson-databind/commit/a1fa4ae4ecf5cee16da465985f135f3e81816f8c Patch
https://github.com/FasterXML/jackson-databind/issues/3447 ExploitIssue Tracking
https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-3wrr-7qpf-2prh PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2018-14721Fasterxml jackson-databind server-side request forgery (ssrf) vulnerabilityFasterXML jackson-databind 2.x before 2.9.7 might allow remote attackers to conduct server-side request forgery (SSRF) attacks by leveraging failure …EPSS 10%9.8CVE-2019-14893Fasterxml jackson-databind information exposure vulnerabilityA flaw was discovered in FasterXML jackson-databind in all versions before 2.9.10 and 2.10.0, where it would permit polymorphic deserialization of ma…EPSS 4.1%9.8CVE-2019-14892Fasterxml jackson-databind information exposure vulnerabilityA flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would permit polymorphic deserialization of a mal…EPSS 5.6%9.8CVE-2020-9547Fasterxml jackson-databind deserialization of untrusted data vulnerabilityFasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to com.ibatis.sqlmap.engi…EPSS 18%9.8CVE-2020-9548Fasterxml jackson-databind deserialization of untrusted data vulnerabilityFasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to br.com.anteros.dbcp.An…EPSS 18%9.8CVE-2020-9546Fasterxml jackson-databind deserialization of untrusted data vulnerabilityFasterXML jackson-databind 2.x before 2.9.10.4 mishandles the interaction between serialization gadgets and typing, related to org.apache.hadoop.shad…EPSS 4.6%9.8CVE-2020-8840Fasterxml jackson-databind deserialization of untrusted data vulnerabilityFasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by org.apache.xbean.propertyeditor.JndiC…EPSS 27%9.8CVE-2019-20330Fasterxml jackson-databind deserialization of untrusted data vulnerabilityFasterXML jackson-databind 2.x before 2.9.10.2 lacks certain net.sf.ehcache blocking.EPSS 8.6%

Source: NIST National Vulnerability Database (record CVE-2026-50193), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.