{"id":82520,"date":"2026-07-24T23:06:53","date_gmt":"2026-07-24T19:36:53","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-66037-ffmpeg-iamf-demuxer-uncontrolled-resource-consumption-via-mix_presentation_obu\/"},"modified":"2026-07-24T23:06:53","modified_gmt":"2026-07-24T19:36:53","slug":"cve-2026-66037-ffmpeg-iamf-demuxer-uncontrolled-resource-consumption-via-mix_presentation_obu","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-66037-ffmpeg-iamf-demuxer-uncontrolled-resource-consumption-via-mix_presentation_obu\/","title":{"rendered":"CVE-2026-66037 &#8211; FFmpeg IAMF Demuxer Uncontrolled Resource Consumption via mix_presentation_obu()"},"content":{"rendered":"<p>CVE ID :CVE-2026-66037<\/p>\n<p>  Published : July 24, 2026, 7:36 p.m. | 13\u00a0minutes ago<\/p>\n<p>  Description :FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted count_label field. The mix_presentation_obu() function in libavformat\/iamf_parse.c calls av_calloc(count_label, sizeof(*language_label)) with an attacker-controlled value before validating available OBU data, enabling an allocation amplification of approximately 126 million bytes per input byte that exhausts process memory or triggers an OOM-kill during format probing.<\/p>\n<p>  Severity: 7.1 | HIGH<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-66037 Published : July 24, 2026, 7:36 p.m. | 13\u00a0minutes ago Description :FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted count_label field. The mix_presentation_obu() function &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-82520","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=82520"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82520\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}