{"api_version":"1","generated_at":"2026-08-15T15:07:49+00:00","cve":"CVE-2026-73635","urls":{"html":"https://cve.report/CVE-2026-73635","api":"https://cve.report/api/cve/CVE-2026-73635.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-73635","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-73635"},"summary":{"title":"Apache Struts: Unbounded growth of localized-text caches driven by the request locale","description":"Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.\n\nThis issue affects Apache Struts: from 2.0.0 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.\n\nUsers are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.","state":"PUBLISHED","assigner":"apache","published_at":"2026-08-15 11:16:27","updated_at":"2026-08-15 11:16:27"},"problem_types":["CWE-770","CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling"],"metrics":[],"references":[{"url":"https://cwiki.apache.org/confluence/display/WW/S2-074","name":"https://cwiki.apache.org/confluence/display/WW/S2-074","refsource":"security@apache.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73635","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73635","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Struts","version":"affected 2.0.0 2.3.37 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Struts","version":"affected 2.5.0 2.5.33 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Struts","version":"affected 6.0.0 6.10.0 semver","platforms":[]},{"source":"CNA","vendor":"Apache Software Foundation","product":"Apache Struts","version":"affected 7.0.0 7.2.1 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Kuniyoshi Noguchi (野口 晋義), (@KuniNogu)","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","packageName":"org.apache.struts:struts2-core","product":"Apache Struts","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"2.3.37","status":"affected","version":"2.0.0","versionType":"semver"},{"lessThanOrEqual":"2.5.33","status":"affected","version":"2.5.0","versionType":"semver"},{"lessThanOrEqual":"6.10.0","status":"affected","version":"6.0.0","versionType":"semver"},{"lessThanOrEqual":"7.2.1","status":"affected","version":"7.0.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Kuniyoshi Noguchi (野口 晋義), (@KuniNogu)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.<br><br>This issue affects Apache Struts: from 2.0.0 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.<br><br>Users are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue."}],"value":"Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.\n\nThis issue affects Apache Struts: from 2.0.0 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.\n\nUsers are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue."}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-15T10:38:08.227Z","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache"},"references":[{"tags":["vendor-advisory"],"url":"https://cwiki.apache.org/confluence/display/WW/S2-074"}],"source":{"discovery":"EXTERNAL"},"title":"Apache Struts: Unbounded growth of localized-text caches driven by the request locale","x_generator":{"engine":"Vulnogram 0.2.0"}}},"cveMetadata":{"assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","assignerShortName":"apache","cveId":"CVE-2026-73635","datePublished":"2026-08-15T10:38:08.227Z","dateReserved":"2026-08-13T11:52:36.541Z","dateUpdated":"2026-08-15T10:38:08.227Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 11:16:27","lastModifiedDate":"2026-08-15 11:16:27","problem_types":["CWE-770","CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"73635","Ordinal":"1","Title":"Apache Struts: Unbounded growth of localized-text caches driven ","CVE":"CVE-2026-73635","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"73635","Ordinal":"1","NoteData":"Allocation of resources without limits or throttling vulnerability in Apache Struts. When no fixed locale is configured, the locale used for localized-text lookups is taken from the incoming request, allowing an unauthenticated remote client to cause the framework's internal localized-text caches to grow without bound and exhaust the Java heap, denying service to other users. Applications that configure a fixed locale are not affected.\n\nThis issue affects Apache Struts: from 2.0.0 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.\n\nUsers are recommended to upgrade to version 6.11.0 or 7.3.0, which fixes the issue.","Type":"Description","Title":"Apache Struts: Unbounded growth of localized-text caches driven "}]}}}