{"id":"CVE-2026-107678","summary":"FFmpeg through 9.0.2 Stack Exhaustion via Recursive Free of pssh Boxes","details":"FFmpeg through 9.0.2 contains a stack exhaustion vulnerability in av_encryption_init_info_free() in libavutil/encryption_info.c, which recursively frees AVEncryptionInitInfo linked lists built by the MOV demuxer's mov_read_pssh(). Attackers can supply a crafted MP4 file with tens of thousands of small pssh boxes to exhaust the stack and crash the process, while also causing quadratic CPU consumption.","modified":"2026-10-10T02:47:25.546525635Z","published":"2026-10-08T15:28:43.274Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-674"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107678.json"},"references":[{"type":"WEB","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg"},{"type":"WEB","url":"https://ffmpeg.org/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107678.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107678"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-stack-exhaustion-via-recursive-free-of-pssh-boxes"},{"type":"REPORT","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24593"},{"type":"ARTICLE","url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/mov.c#L8070"},{"type":"ARTICLE","url":"https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavutil/encryption_info.c#L219-L231"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ffmpeg/ffmpeg","events":[{"introduced":"0"},{"fixed":"946fcce07b6dcd0331c8cc609192aeff5e1924f8"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"9.0.2"},{"fixed":"9.0.2"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["n9.0.1","n9.0","n8.2-dev","n8.1-dev","n7.2-dev","n7.1-dev","n6.2-dev","n6.1-dev","n5.2-dev","n5.1-dev","n4.5-dev","n4.4-dev","n4.3-dev","n4.2-dev","n4.1-dev","n3.5-dev","n3.4-dev","n3.3-dev","n3.2-dev","n3.1-dev","n2.9-dev","n2.8-dev","n2.7-dev","n2.6-dev","n2.5-dev","n2.4-dev","n2.3-dev","n2.2-dev","n2.0","n2.1-dev","n1.3-dev","n1.2-dev","n1.1-dev","n0.12-dev","n0.11-dev","n0.8","N"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107678.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}