CVE-2026-49206

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Source
https://cve.org/CVERecord?id=CVE-2026-49206
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49206.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49206
Aliases
  • GHSA-v83v-8j5q-6553
Published
2026-10-14T15:44:43Z
Modified
2026-10-15T07:08:38Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
rapidcsv: Integer overflow in iterator arithmetic causes out-of-bounds access
Details

rapidcsv is a C++ CSV parser library. Prior to 8.99, RemoveColumn, InsertColumn, RemoveRow, InsertRow, and GetColumnNames converted size_t indexes to int before adding them to std::vector iterators. On 64-bit systems, in a CSV matrix dimension containing more than 2^31 elements, an index above INT_MAX could wrap to a negative iterator offset and point before the start of the vector, causing undefined behavior, heap memory corruption, or a crash. Triggering the issue requires an extremely large in-memory document, requiring tens of gigabytes of memory at minimum, so typical CSV documents are not practically affected. This issue is fixed in version 8.99.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-190",
        "CWE-787"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49206.json"
}
References

Affected packages

Git / github.com/d99kris/rapidcsv

Affected ranges

Type
GIT
Repo
https://github.com/d99kris/rapidcsv
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
68f57cc6c83d5e0992904398822453489d8dfac1
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "8.99"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v4.*
v4.10
v6.*
v6.11
v7.*
v7.00
v8.*
v8.00
v8.20
v8.30
v8.40
v8.42
v8.43
v8.46
v8.48
v8.50
v8.51
v8.52
v8.53
v8.62
v8.64
v8.65
v8.69
v8.75
v8.77
v8.80
v8.82
v8.83
v8.84
v8.85
v8.87
v8.88
v8.89
v8.90
v8.92
v8.97

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49206.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
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                "252179980617351079874085530080025826698",
                "158488307933798563905777408162587114830"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-49206-7af192c5",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/d99kris/rapidcsv/commit/68f57cc6c83d5e0992904398822453489d8dfac1",
        "target":  {
            "file":  "src/rapidcsv.h"
        }
    }
]
vanir_signatures_modified 
"2026-10-15T07:08:38Z"