CVE-2026-92705

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Source
https://cve.org/CVERecord?id=CVE-2026-92705
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92705.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92705
Aliases
  • GHSA-67hq-5vgg-6f23
Downstream
Published
2026-10-09T20:37:58Z
Modified
2026-10-11T07:04:55Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Aegisub executes arbitrary code through automatically loaded Automation scripts
Details

Aegisub is a cross-platform advanced subtitle editor. From 3.2.0 to 3.4.2, Aegisub automatically loads Automation scripts referenced by Automation Scripts metadata in ASS subtitle projects without asking whether the user trusts the scripts or their authors. An attacker can distribute a crafted ASS file together with a referenced malicious Automation script, and opening the AS  file executes arbitrary code with the privileges of the Aegisub process. From 3.4.0 to 3.4.2, inconsistent handling of embedded NUL characters between extension validation and filesystem operations additionally allows a crafted ASS/Lua polyglot to reference and execute itself as a single-file variant. The vulnerability is fixed in Aegisub 3.5.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-158",
        "CWE-829"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92705.json"
}
References

Affected packages

Git / github.com/typesettingtools/aegisub

Affected ranges

Type
GIT
Repo
https://github.com/typesettingtools/aegisub
Events
Introduced
3971eb0fb350482d20a84c5c21113d4789cdf77a
Fixed
0a3073d59f10432eeebea65018b02ef4d0a87fff
Fixed
b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6
Fixed
e4099055711cce327840870c050ce46e58f4aee0
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "3.2.0"
        },
        {
            "fixed": "3.5.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92705.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "297913394838006257977939655020631017604",
            "length": 307
        },
        "id": "CVE-2026-92705-046e8384",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6",
        "target": {
            "file": "src/ass_parser.cpp",
            "function": "AssParser::ParseMetadataLine"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
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                "46552602213065322648418228163534936855",
                "164253810444980791087131157678433648065",
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                "99696356911038775612664779998608695722",
                "308981881531990278370603105087549771893",
                "229691140279273757150314856779021695315",
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            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-92705-0fecabfe",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/e4099055711cce327840870c050ce46e58f4aee0",
        "target": {
            "file": "src/auto4_base.cpp"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "63216833812505810010865651380835673510",
            "length": 907
        },
        "id": "CVE-2026-92705-3ce4c656",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6",
        "target": {
            "file": "src/ass_parser.cpp",
            "function": "AssParser::ParseExtradataLine"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "73254139070309691928000974497278780407",
                "174580960835583491552409076963181674271",
                "87620570954342429190275354490499875070",
                "4772629093353042341274998811503759814"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-92705-6769503b",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6",
        "target": {
            "file": "src/ass_parser.h"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "4649642339399945969638527936849558461",
            "length": 1266
        },
        "id": "CVE-2026-92705-81962dc8",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/e4099055711cce327840870c050ce46e58f4aee0",
        "target": {
            "file": "src/auto4_base.cpp",
            "function": "LocalScriptManager::Reload"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "245107269408514329255527771236002696493",
                "222507216250350444858445990800306767889",
                "30407424653601168592411274093541465097",
                "25226756387606778410061978114165443504"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-92705-8c1d02c0",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/0a3073d59f10432eeebea65018b02ef4d0a87fff",
        "target": {
            "file": "libaegisub/common/fs.cpp"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "288938258967667064595355224828451900693",
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                "275293298390880800006746420046325677340",
                "24064349552569742427096307467014113577"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-92705-98bb81d0",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/b5bf23979e7453f7b1cc8ffeb82b3cc2d2ca75e6",
        "target": {
            "file": "src/ass_parser.cpp"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "189384967113498168673372983353482426497",
            "length": 287
        },
        "id": "CVE-2026-92705-a813be53",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/typesettingtools/aegisub/commit/0a3073d59f10432eeebea65018b02ef4d0a87fff",
        "target": {
            "file": "libaegisub/common/fs.cpp",
            "function": "HasExtension"
        }
    }
]
vanir_signatures_modified 
"2026-10-11T07:04:55Z"