CVE-2026-88361

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Source
https://cve.org/CVERecord?id=CVE-2026-88361
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88361.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-88361
Published
2026-09-24T00:00:00Z
Modified
2026-10-28T11:19:22Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

SumatraPDF 3.6.1 contains an integer overflow vulnerability in EngineMupdf::BuildPageLabelRec() when parsing PDF PageLabels /Nums entries.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88361.json"
}
References

Affected packages

Git / github.com/chenjiefeng2001/sumatrapdf_folked

Affected ranges

Type
GIT
Repo
https://github.com/chenjiefeng2001/sumatrapdf_folked
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b22a8c71ddc9de80ece5f88d14b434c20fee912e
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "b22a8c71ddc9de80ece5f88d14b434c20fee912e"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}
Type
GIT
Repo
https://github.com/haimag/sumatrapdf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8b999ff1bf0a8df244e75440682a3fd9a038eb2d
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "fixed": "8b999ff1bf0a8df244e75440682a3fd9a038eb2d"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v1.*
v1.1.0-simd

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88361.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "103419843585998220619481420118567966548",
                "265127374609241147051723381016726127879",
                "126352412400955012863168093043489978555",
                "189076947827203599892084197070423835492",
                "253633981282088994051091304121297778249",
                "321443700280965110313184845874993786347",
                "92661041186131680225161551976057196675",
                "80013170756471999453685291697836227717",
                "141281864912153749303363971601812446527",
                "310753551417720173102772113739145920613",
                "250018333589676265637908484632756431550"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-88361-620515f5",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/haimag/sumatrapdf/commit/8b999ff1bf0a8df244e75440682a3fd9a038eb2d",
        "target": {
            "file": "src/EngineMupdf.cpp"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "191874070394615880881826176445384560185",
            "length": 1018
        },
        "id": "CVE-2026-88361-bcf9b463",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/chenjiefeng2001/sumatrapdf_folked/commit/b22a8c71ddc9de80ece5f88d14b434c20fee912e",
        "target": {
            "file": "src/EngineMupdf.cpp",
            "function": "BuildPageLabelRec"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "309187069373612576301724466205078992752",
            "length": 1083
        },
        "id": "CVE-2026-88361-c68e8e23",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/haimag/sumatrapdf/commit/8b999ff1bf0a8df244e75440682a3fd9a038eb2d",
        "target": {
            "file": "src/EngineMupdf.cpp",
            "function": "BuildPageLabelRec"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "103419843585998220619481420118567966548",
                "265127374609241147051723381016726127879",
                "126352412400955012863168093043489978555",
                "189076947827203599892084197070423835492",
                "253633981282088994051091304121297778249",
                "321443700280965110313184845874993786347",
                "92661041186131680225161551976057196675",
                "283398602493387706000575795247419565784",
                "45505334799859981914475072080042727873",
                "277711603200074236772469492499982160421",
                "232460432730942694460286653159780739612",
                "328841771763573300633890964065567684772",
                "332084266802775960704404901815077591483"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-88361-cdffdd40",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/chenjiefeng2001/sumatrapdf_folked/commit/b22a8c71ddc9de80ece5f88d14b434c20fee912e",
        "target": {
            "file": "src/EngineMupdf.cpp"
        }
    }
]
vanir_signatures_modified 
"2026-10-28T11:19:22Z"