{"id":"CVE-2026-76956","details":"In libexpat 2.8.2 and 2.8.3 before 2.8.4, misinterpretation of getentropy's return code leads to insufficient entropy, which results in being vulnerable to hash flooding attacks, causing a denial of service via crafted XML content.","modified":"2026-09-10T18:27:15.263391351Z","published":"2026-08-20T04:22:51.381Z","related":["openSUSE-SU-2026:11733-1"],"database_specific":{"cna_assigner":"mitre","cwe_ids":["CWE-394"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76956.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76956.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76956"},{"type":"FIX","url":"https://github.com/libexpat/libexpat/pull/1326"},{"type":"FIX","url":"https://github.com/libexpat/libexpat/pull/1329"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libexpat/libexpat","events":[{"introduced":"c61098da494eea1cbd091118118dcee417faacea"},{"fixed":"12cf0b1f25f026a022fe728ad8f7e3d017285b80"}],"database_specific":{"extracted_events":[{"introduced":"2.8.2"},{"fixed":"2.8.4"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*"}}],"versions":["R_2_8_3","R_2_8_2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-76956.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}