Resource exhaustion in Fasterxml Jackson-Databind
CVE-2026-50193
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.005 (38.9th percentile) — read the EPSS interpretation.
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.
Affected products
- Fasterxml Jackson-databind — versions >= 2.10.0, < 2.14.0
Weakness classification (CWE)
References
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Exploit, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-50193?
- CVE-2026-50193 is a high-severity vulnerability in Fasterxml Jackson-Databind, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-06-23.
- How severe is CVE-2026-50193?
- High severity. CVSS v3 base score is 7.5 out of 10.