CVE-2026-88358

Source
https://cve.org/CVERecord?id=CVE-2026-88358
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88358.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-88358
Downstream
Published
2026-09-24T00:00:00Z
Modified
2026-09-26T08:04:17Z
Summary
[none]
Details

simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service.

Database specific
{
    "cna_assigner":  "mitre",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/88xxx/CVE-2026-88358.json"
}
References

Affected packages

Git / github.com/simdjson/simdjson

Affected ranges

Type
GIT
Repo
https://github.com/simdjson/simdjson
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "source":  "REFERENCES"
}

Affected versions

3.*
3.1.0
v0.*
v0.0.1
v0.1.0
v0.1.1
v0.1.2
v0.2.0
v0.2.1
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v0.9.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.1.0
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.0.4
v2.1.0
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v3.*
v3.0.0
v3.0.1
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.1.7
v3.1.8
v3.10.0
v3.10.1
v3.11.0
v3.11.1
v3.11.2
v3.11.3
v3.11.4
v3.11.5
v3.11.6
v3.12.0
v3.12.1
v3.12.2
v3.12.3
v3.13.0
v3.2.0
v3.2.1
v3.2.2
v3.2.3
v3.3.0
v3.4.0
v3.5.0
v3.6.0
v3.6.1
v3.6.2
v3.6.3
v3.6.4
v3.7.0
v3.7.1
v3.8.0
v3.9.0
v3.9.1
v3.9.2
v3.9.3
v3.9.4
v3.9.5
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.0.4
v4.0.5
v4.0.6
v4.0.7
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.3.0
v4.3.1
v4.4.0
v4.4.1
v4.4.2
v4.5.0
v4.6.0
v4.6.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-88358.json"
vanir_signatures
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "221803649833453960476142758671696747116",
                "189287906113089438303694835018922872413",
                "176731615684929811177536925557719622954",
                "131635123058214744125911791844344779365",
                "125775819034041095639014898153293003055",
                "64990460152038762429208759659193128560",
                "252915102542975714790383093069330290369"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-88358-235f9626",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577",
        "target":  {
            "file":  "src/generic/stage2/tape_builder.h"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "314272446449395910762996676078859553933",
            "length":  263
        },
        "id":  "CVE-2026-88358-29c7b780",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577",
        "target":  {
            "file":  "tests/dom/unpadded_tests.cpp",
            "function":  "run"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "194565675035588771109231848467811232432",
                "335344031334973921379923484328548750471",
                "142320280438604655865446410356581462649",
                "69772791155360322633333664152881165605",
                "196140882651525670794894131413975420162",
                "319637562077163268849763737538159605607",
                "236830543364021419612436062573711875762"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-88358-89324466",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577",
        "target":  {
            "file":  "tests/dom/unpadded_tests.cpp"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "312435825054635991804316033658694452321",
                "253095449800212170918810194019461270630",
                "12374980836113449862356677852155235934",
                "338093339712719004681941362895403010515",
                "292045487854032002344565926464322557591",
                "257465043399228054376809568421895462105",
                "218093064719174879426658778632609062689",
                "321362696170812384387785809660570151525",
                "289425340474098988481797269127747035809",
                "242175597685534904469370094678902656524",
                "132784459435302915769266848954540354013",
                "109360929217814682024547198505640178982",
                "56641897088172693501073952505109362297",
                "98167070543408687364433229498707026211",
                "223378468316745851895781276414071675173",
                "135818256752069294766557581934717388407",
                "156849550075020174922903079554582763197",
                "170279301051040206451586119841322014273",
                "88020004910617352541829337237733522497",
                "66964289525277563175019201853242616234",
                "31441708266536567022358228733690752033",
                "164650214958376723262296769709938103012",
                "11471937979975489156272131408091909449",
                "101294635697468732547417373620237570909",
                "12294648079776049078367285882364802572",
                "339639360041952646021522556840717746824",
                "200707635637534399519404124064337167461",
                "193338327134556369800932910510044702346",
                "98212532149580583431908333323578322705",
                "219727383983726955565072286440117922943",
                "74526998203577827501159304916684909857",
                "231667783046755825147797836861163408089",
                "62576494337263956087151913255026244872",
                "160153805587129979852174845359878532120",
                "246155894951818116609328716725152278877",
                "189250418806728512657807851746230965108",
                "192430285577970558724412559499752771672",
                "105469460554824976934607020263890396075",
                "117945012936107950428569637289421871156",
                "71710211975257247885704593556894721513",
                "333415033386888439651566013665261785419",
                "150548664634314104122053278633085310685",
                "142212651718613328068484749408869550668",
                "53863043524759431914933606683700561692",
                "169488840536745235885458029599644619531",
                "103325765052356853029424335151781306684",
                "74526998203577827501159304916684909857",
                "231667783046755825147797836861163408089",
                "62576494337263956087151913255026244872",
                "160153805587129979852174845359878532120",
                "246155894951818116609328716725152278877",
                "269153345262174377752112929173554517907",
                "334479740075213035797932701046703883862",
                "23393618736141272576519005106942101253",
                "317075247191103342086349912955242564683",
                "62215489188419893966761709067000576864",
                "142256702317723052432751707186775431492",
                "261735564990503687553330872153381463381",
                "219792426512108663315115944655789578950",
                "215536890133342706847193148145373335614",
                "312344768062700738396658131390475593472",
                "231014374223722891185971964034705258426",
                "322808037478589601701500210624804445013",
                "66487916597725044830719743399603962704"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-88358-97e10543",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577",
        "target":  {
            "file":  "src/generic/stage2/json_iterator.h"
        }
    }
]
vanir_signatures_modified
"2026-09-26T08:04:17Z"