CVE-2026-82821

A vulnerability was determined in FLVMeta up to 1.2.2. Affected by this vulnerability is the function amfobjectget 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."

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82821.json",
    "cna_assigner": "VulDB",
    "cwe_ids": [
        "CWE-404",
        "CWE-476"
    ]
}

References

Affected packages

Git / github.com/noirotm/flvmeta

Affected ranges

Type

GIT

Repo

https://github.com/noirotm/flvmeta

Events

Introduced

39f1c840d24eab3e21e9415df421afbbf40f902c

Fixed

52642f7dfb76ec7334016622dde60b1ae963d79b

Database specific

Show details

{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "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"
        }
    ]
}

Affected versions

1.*

1.2.0

1.2.1

1.2.2

v1.*

v1.2.0

v1.2.1

v1.2.2

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "61685108807410042606137657096928199569",
                "325983258665970839215581919438823005620",
                "327054788915019172348301241440771674233",
                "205207625929119484047372411631579180710",
                "53469241382800338243465489689048546751",
                "159440292885037703607019852224620693910",
                "327054788915019172348301241440771674233",
                "205207625929119484047372411631579180710"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-82821-2273ac80",
        "target": {
            "file": "src/amf.c"
        },
        "source": "https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b",
        "signature_version": "v1"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 496.0,
            "function_hash": "30397963677706415067238633594668349698"
        },
        "id": "CVE-2026-82821-554ce2c7",
        "target": {
            "function": "amf_object_set",
            "file": "src/amf.c"
        },
        "source": "https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b",
        "signature_version": "v1"
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "length": 420.0,
            "function_hash": "152476626109211122384819310670478997150"
        },
        "id": "CVE-2026-82821-b2f2d138",
        "target": {
            "function": "amf_object_get",
            "file": "src/amf.c"
        },
        "source": "https://github.com/noirotm/flvmeta/commit/52642f7dfb76ec7334016622dde60b1ae963d79b",
        "signature_version": "v1"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82821.json"

vanir_signatures_modified

"2026-09-02T08:08:03Z"