{"apiVersion":"1.0","identifier":"CVE-2026-73633","description":"Uncontrolled resource consumption vulnerability in the JSON plugin of Apache Struts. When an application is configured to populate actions from a JSON request body, the plugin reads that body into memory without bounding how much it will accept, so a single request can exhaust the heap and deny service to other users. The plugin-s configurable JSON input length limit does not bound this read. The JSON plugin is an optional component; applications that do not use it, or use it without enabling JSON request-body handling, are not affected. This issue affects Apache Struts: from 2.1.8 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.10.0, from 7.0.0 through 7.2.1. Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.","publishedAt":"2026-08-14T14:16:51","lastModifiedAt":"2026-08-18T13:15:41","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73633","cvssScore":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","epssProbability":0.00601,"riskScore":0.79,"affectedProduct":"Apache Struts","affectedVersions":">=2.1.8,<=2.3.37,>=2.5.0,<=2.5.33,>=6.0.0,<=6.10.0,>=7.0.0,<=7.2.1","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73633","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73633","en":"https://www.redsauce.net/en/cves/CVE-2026-73633","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73633","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73633","de":"https://www.redsauce.net/de/cves/CVE-2026-73633","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73633","el":"https://www.redsauce.net/el/cves/CVE-2026-73633"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73633"}}