CVE-2026-113679

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Source
https://cve.org/CVERecord?id=CVE-2026-113679
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113679.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-113679
Downstream
Published
2026-10-20T15:40:40Z
Modified
2026-10-21T09:08:19Z
Severity
  • 7.3 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
HarfBuzz 8.0.0 through 14.6.0 Out-of-Bounds Write via WebAssembly font_glyph_to_string
Details

HarfBuzz 8.0.0 through 14.6.0 contains an out-of-bounds write vulnerability in the experimental WebAssembly shaper because the font_glyph_to_string import has a wrong WAMR signature. Attackers can supply a crafted font whose wasm module places the output buffer near linear memory's end, writing glyph-name bytes into host memory to crash or corrupt applications.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113679.json"
}
References

Affected packages

Git / github.com/harfbuzz/harfbuzz

Affected ranges

Type
GIT
Repo
https://github.com/harfbuzz/harfbuzz
Events
Introduced
b4305532a7746422e0b615eee6304119c1092fd8
Last Affected
c7a7457b7385f33178e8cf87615ca077a810bbe7
Fixed
5e821de8256d01780566b5c8ab7886fae4c93da8
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "8.0.0"
                },
                {
                    "last_affected":  "14.6.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "5e821de8256d01780566b5c8ab7886fae4c93da8"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

10.*
10.0.0
10.0.1
10.1.0
10.2.0
10.3.0
10.4.0
11.*
11.4.0
11.4.1
11.4.2
11.4.3
11.4.4
11.4.5
11.5.0
11.5.1
12.*
12.0.0
12.1.0
12.2.0
12.3.0
12.3.1
12.3.2
13.*
13.0.0
13.0.1
13.1.0
13.1.1
13.2.0
13.2.1
14.*
14.0.0
14.1.0
14.2.0
14.2.1
14.3.0
14.3.1
14.4.0
14.5.0
14.5.1
14.6.0
8.*
8.0.0
8.0.1
8.1.0
8.1.1
8.2.0
8.2.1
8.2.2
8.3.0
8.3.1
8.4.0
8.5.0
9.*
9.0.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-113679.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "333548436696853681483563782986714692698",
                "332269310760523516852965984802967069831",
                "263528804234258733285732189757118251050",
                "129640678444338719177904915694899659002"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-113679-60b5fabc",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8",
        "target":  {
            "file":  "src/hb-wasm-api.h"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "33254459101338029056566101499785411793",
                "42574286267419198526633058381188287627",
                "143374696433031058590446044829950468173",
                "308902903835846670442514975783525884844",
                "169496613538168929139209957750765011607",
                "319040883226476558542377660714226692979"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-113679-67dc6d39",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8",
        "target":  {
            "file":  "src/hb-wasm-api-font.hh"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "238598749855544507257014300198713833092",
                "191677944125026666787698157232793207187",
                "37620113880327536304517336743889863235",
                "205228394194376080220060859533864381696"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-113679-7855b7ed",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/harfbuzz/harfbuzz/commit/5e821de8256d01780566b5c8ab7886fae4c93da8",
        "target":  {
            "file":  "src/hb-wasm-api-list.hh"
        }
    }
]
vanir_signatures_modified 
"2026-10-21T09:08:19Z"