{"id":"CVE-2026-103678","revision":null,"records":[{"revision":"70bd9a1f6e4346a4948e636a9f9d2398","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-103678","aliases":[],"title":"Tnef: heap out-of-bounds read in get_rtf_data_from_buf() via uncompressed rtf mapi value","description":"A flaw was found in tnef. An attacker can exploit this vulnerability by providing a specially crafted file containing uncompressed Rich Text Format (RTF) data. Because the application fails to properly validate input buffer boundaries before copying data in get_rtf_data_from_buf(), reading beyond the allocated memory occurs. This flaw can cause the application to crash, leading to a Denial of Service (DoS), or leak sensitive memory contents into extracted output files.","state":0,"publishedAt":"2026-10-01T11:34:48.652+00:00","modifiedAt":"2026-10-01T15:00:19.812+00:00","affected":[{"ecosystem":"https://github.com/verdammelt/tnef","name":"tnef","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"1.4.18\"\n                        }\n                    ],\n                    \"packageName\": \"tnef\",\n                    \"collectionURL\": \"https://github.com/verdammelt/tnef\",\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","score":5.4,"severity":"MEDIUM"}],"references":["https://access.redhat.com/security/cve/CVE-2026-103678","https://bugzilla.redhat.com/show_bug.cgi?id=2544476","https://github.com/verdammelt/tnef"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103678","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103678","identifiers":["CVE-2026-103678"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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