CVE-2026-107660

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Source
https://cve.org/CVERecord?id=CVE-2026-107660
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107660.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-107660
Downstream
Published
2026-10-08T15:28:40Z
Modified
2026-10-09T07:06:53Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
FFmpeg before 8.1.3 and 9.x before 9.0.2 mbedTLS Hostname Verification Bypass for IP Hosts
Details

FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an improper certificate validation vulnerability in tls_open() of libavformat/tls_mbedtls.c, which skips hostname checks for IP-address hosts. Network attackers can intercept https, rtmps, or tls connections to IP-literal URLs with any trusted CA-issued certificate to read and tamper with streams.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-297"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107660.json"
}
References

Affected packages

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1041abdc962f4cc4f394aa8de9dc5236c0c3b9e7
Introduced
d32b387f2b0a484599d4587d651891f0c63c4238
Fixed
946fcce07b6dcd0331c8cc609192aeff5e1924f8
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.1.3"
        },
        {
            "introduced": "9.0"
        },
        {
            "fixed": "9.0.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

Other
N
n0.*
n0.11-dev
n0.12-dev
n0.8
n1.*
n1.1-dev
n1.2-dev
n1.3-dev
n2.*
n2.0
n2.1-dev
n2.2-dev
n2.3-dev
n2.4-dev
n2.5-dev
n2.6-dev
n2.7-dev
n2.8-dev
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev
n4.*
n4.1-dev
n4.2-dev
n4.3-dev
n4.4-dev
n4.5-dev
n5.*
n5.1-dev
n5.2-dev
n6.*
n6.1-dev
n6.2-dev
n7.*
n7.1-dev
n7.2-dev
n8.*
n8.1
n8.1-dev
n8.1.1
n8.1.2
n9.*
n9.0
n9.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107660.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "105442483210926319160465196797642082364",
            "length": 4774
        },
        "id": "CVE-2026-107660-397b5519",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/1041abdc962f4cc4f394aa8de9dc5236c0c3b9e7",
        "target": {
            "file": "libavformat/tls_gnutls.c",
            "function": "tls_open"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "294743355700093164049687108208873085085",
                "224965271620837188898662069401134792161",
                "265157521262625521451262118292114363008",
                "25267032580962748686041211766260548539",
                "288771055614593351168329352873927446828",
                "53989852260687713572797447970147499102",
                "85263668306260175235908565784155404500",
                "126708715019858463115413013055776439727",
                "250936792900039357966242742548850663615",
                "233269261520550088398052581304792306815",
                "100169017263657203071873393627980140697",
                "259030622961485660928302215624760282163",
                "207706088114512659742213377410159498610",
                "240026302395214622814105709906272076705",
                "307969978196503324667336784936863433154",
                "248723093221806719839251281363761281731",
                "295275768641886040795633308418339589772",
                "246824707463387711938561227461300764945",
                "218915441499077723859496405218262171036",
                "287680861236209989555898420906212164973",
                "89283821891072419980986328050002025119",
                "35321890611978964423610561484240052326",
                "293356392578078406821798609450059364653",
                "176799238777128513161325516005692082610",
                "306300210666150773252873265185691743758",
                "172210818910291424728612305586102494925",
                "91354717951606701022962506954206737364",
                "27898421268780237467740626846927593971",
                "43363202001267167103800358854796501422"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-107660-bb8a9c63",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/ffmpeg/ffmpeg/commit/1041abdc962f4cc4f394aa8de9dc5236c0c3b9e7",
        "target": {
            "file": "libavformat/tls_gnutls.c"
        }
    }
]
vanir_signatures_modified 
"2026-10-09T07:06:53Z"