{"id":"CVE-2026-82821","summary":"FLVMeta AMF Object Parsing amf.c amf_object_get null pointer dereference","details":"A vulnerability was determined in FLVMeta up to 1.2.2. Affected by this vulnerability is the function amf_object_get of the file src/amf.c of the component AMF Object Parsing. This manipulation causes null pointer dereference. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: 52642f7dfb76ec7334016622dde60b1ae963d79b. To fix this issue, it is recommended to deploy a patch. The project maintainer doubts the security impact: \"While I acknowledged the bugs and provided fixes, I have yet to see any way to exploit these alleged vulnerabilities.\"","modified":"2026-09-02T08:08:03.682879Z","published":"2026-08-31T18:45:09.107Z","database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-404","CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82821.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82821.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82821"},{"type":"ADVISORY","url":"https://vuldb.com/cve/CVE-2026-82821"},{"type":"ADVISORY","url":"https://vuldb.com/submit/876597"},{"type":"ADVISORY","url":"https://vuldb.com/vuln/397244"},{"type":"REPORT","url":"https://github.com/noirotm/flvmeta/issues/28"},{"type":"REPORT","url":"https://vuldb.com/vuln/397244/cti"},{"type":"FIX","url":"https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b"},{"type":"EVIDENCE","url":"https://github.com/raind20001020/Poc/blob/main/flvmeta_SEGV"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/noirotm/flvmeta","events":[{"introduced":"39f1c840d24eab3e21e9415df421afbbf40f902c"},{"fixed":"52642f7dfb76ec7334016622dde60b1ae963d79b"}],"database_specific":{"extracted_events":[{"introduced":"1.2.0"},{"last_affected":"1.2.0"},{"introduced":"1.2.1"},{"last_affected":"1.2.1"},{"introduced":"1.2.2"},{"last_affected":"1.2.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["1.2.0","1.2.1","1.2.2","v1.2.2","v1.2.1","v1.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82821.json","vanir_signatures_modified":"2026-09-02T08:08:03Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["61685108807410042606137657096928199569","325983258665970839215581919438823005620","327054788915019172348301241440771674233","205207625929119484047372411631579180710","53469241382800338243465489689048546751","159440292885037703607019852224620693910","327054788915019172348301241440771674233","205207625929119484047372411631579180710"],"threshold":0.9},"id":"CVE-2026-82821-2273ac80","signature_type":"Line","signature_version":"v1","source":"https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b","target":{"file":"src/amf.c"}},{"source":"https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b","target":{"file":"src/amf.c","function":"amf_object_set"},"deprecated":false,"digest":{"function_hash":"30397963677706415067238633594668349698","length":496},"id":"CVE-2026-82821-554ce2c7","signature_type":"Function","signature_version":"v1"},{"deprecated":false,"digest":{"function_hash":"152476626109211122384819310670478997150","length":420},"id":"CVE-2026-82821-b2f2d138","signature_type":"Function","signature_version":"v1","source":"https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b","target":{"file":"src/amf.c","function":"amf_object_get"}}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}]}