Threats Tagged 'ghsa-6qm2-mcq7-53qp'
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Threats Tagged 'ghsa-6qm2-mcq7-53qp'
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0 CVE-2026-18401 is a medium severity vulnerability in FasterXML jackson-core affecting the asynchronous JSON parser. The async parser does not enforce the maxNumberLength constraint, allowing an attacker to submit JSON with arbitrarily long number tokens. This leads to excessive memory allocation and potential CPU exhaustion, causing denial of service. The synchronous parser is not affected as it enforces this limit correctly. No privileges or user interaction beyond submitting JSON data are required. The issue affects jackson-core versions 2.15.0 through 2.18.5, 2.19.0 through 2.21.0, and 3.0.0 through 3.0.x. Patch status is not confirmed; no official fix or remediation level is stated in the vendor advisory. Join the discussion | CVE Database V5 | 08/29/2026, 00:00:00 UTC Added: 08/04/2026, 14:56:53 UTC |
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