{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73635","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","state":"PUBLISHED","assignerShortName":"apache","dateReserved":"2026-08-13T11:52:36.541Z","datePublished":"2026-08-15T10:38:08.227Z","dateUpdated":"2026-08-17T12:43:26.618Z"},"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":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-08-15T10:38:08.227Z"},"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"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-17T12:43:09.201224Z","id":"CVE-2026-73635","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-17T12:43:26.618Z"}}]}}