{"cve":"CVE-2011-0534","nvd":{"published":"2011-02-10T18:00:56.487","modified":"2026-06-16T23:27:34.817","status":"Modified","description":"Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which allows remote attackers to cause a denial of service (OutOfMemoryError) via a crafted request.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html","http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html","http://marc.info/?l=bugtraq&m=139344343412337&w=2","http://osvdb.org/70809","http://secunia.com/advisories/43192"],"products":["apache:tomcat"],"source":"nvd","synced_at":"2026-10-19T19:57:56.749847046+00:00"},"epss":{"cve":"CVE-2011-0534","score":0.07885,"percentile":0.94712,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-43v2-6grp-9pp9","url":"https://osv.dev/vulnerability/GHSA-43v2-6grp-9pp9","summary":"Apache Tomcat does not enforce the maxHttpHeaderSize limit","modified":"2024-02-21T23:41:46.803859Z","packages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=6.0.0 <6.0.32"],"fixed":["6.0.32"]},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","purl":"pkg:maven/org.apache.tomcat/tomcat","ranges":[">=7.0.0 <7.0.8"],"fixed":["7.0.8"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}