{"api_version":"1","generated_at":"2026-08-04T23:55:30+00:00","cve":"CVE-2026-67855","urls":{"html":"https://cve.report/CVE-2026-67855","api":"https://cve.report/api/cve/CVE-2026-67855.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-67855","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-67855"},"summary":{"title":"CVE-2026-67855","description":"open62541 contains a heap use-after-free in the GDS PushManagement certificate update workflow when UA_ENABLE_GDS_PUSHMANAGEMENT is enabled. This allows a remote attacker to cause a denial of service.","state":"PUBLISHED","assigner":"mitre","published_at":"2026-08-04 22:17:15","updated_at":"2026-08-04 22:17:15"},"problem_types":["n/a"],"metrics":[],"references":[{"url":"https://github.com/open62541/open62541","name":"https://github.com/open62541/open62541","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/open62541/open62541/issues/8093","name":"https://github.com/open62541/open62541/issues/8093","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/open62541/open62541/blob/master/examples/encryption/server_encryption.c","name":"https://github.com/open62541/open62541/blob/master/examples/encryption/server_encryption.c","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/open62541/open62541/blob/master/arch/posix/eventloop_posix.c","name":"https://github.com/open62541/open62541/blob/master/arch/posix/eventloop_posix.c","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_internal.h","name":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_internal.h","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_ns0_gds.c","name":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_ns0_gds.c","refsource":"cve@mitre.org","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-67855","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-67855","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"open62541 contains a heap use-after-free in the GDS PushManagement certificate update workflow when UA_ENABLE_GDS_PUSHMANAGEMENT is enabled. This allows a remote attacker to cause a denial of service."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2026-08-04T21:14:57.699Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://github.com/open62541/open62541"},{"url":"https://github.com/open62541/open62541/issues/8093"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_ns0_gds.c"},{"url":"https://github.com/open62541/open62541/blob/master/arch/posix/eventloop_posix.c"},{"url":"https://github.com/open62541/open62541/blob/master/src/server/ua_server_internal.h"},{"url":"https://github.com/open62541/open62541/blob/master/examples/encryption/server_encryption.c"}]}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2026-67855","datePublished":"2026-08-04T00:00:00.000Z","dateReserved":"2026-07-30T00:00:00.000Z","dateUpdated":"2026-08-04T21:14:57.699Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-04 22:17:15","lastModifiedDate":"2026-08-04 22:17:15","problem_types":["n/a"],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"67855","Ordinal":"1","Title":"CVE-2026-67855","CVE":"CVE-2026-67855","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"67855","Ordinal":"1","NoteData":"open62541 contains a heap use-after-free in the GDS PushManagement certificate update workflow when UA_ENABLE_GDS_PUSHMANAGEMENT is enabled. This allows a remote attacker to cause a denial of service.","Type":"Description","Title":"CVE-2026-67855"}]}}}