CVE-2026-59161 (GCVE-0-2026-59161)

Vulnerability from cvelistv5 – Published: 2026-07-10 15:47 – Updated: 2026-07-10 15:47
VLAI
Title
Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation
Summary
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell coordinate to make GetRows append empty rows up to the attacker-controlled index and consume excessive memory and CPU. This issue is fixed in version 2.11.0.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
qax-os excelize Affected: < 2.11.0
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "excelize",
          "vendor": "qax-os",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.11.0"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, the streaming worksheet reader used by Rows and GetRows does not enforce the TotalRows limit on the row r attribute, allowing a small XLSX file with a row number above 1048576 and no cell coordinate to make GetRows append empty rows up to the attacker-controlled index and consume excessive memory and CPU. This issue is fixed in version 2.11.0."
        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
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      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-400: Uncontrolled Resource Consumption",
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              "type": "CWE"
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          ]
        },
        {
          "descriptions": [
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              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T15:47:38.604Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwc",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/qax-os/excelize/security/advisories/GHSA-q5j5-6p94-4gwc"
        },
        {
          "name": "https://github.com/qax-os/excelize/pull/2331",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/qax-os/excelize/pull/2331"
        },
        {
          "name": "https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453"
        },
        {
          "name": "https://github.com/qax-os/excelize/releases/tag/v2.11.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/qax-os/excelize/releases/tag/v2.11.0"
        }
      ],
      "source": {
        "advisory": "GHSA-q5j5-6p94-4gwc",
        "discovery": "UNKNOWN"
      },
      "title": "Excelize: Streaming GetRows row-bound bypass causes attacker-controlled allocation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59161",
    "datePublished": "2026-07-10T15:47:38.604Z",
    "dateReserved": "2026-07-02T16:50:27.887Z",
    "dateUpdated": "2026-07-10T15:47:38.604Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-59161",
      "date": "2026-07-13",
      "epss": "0.00524",
      "percentile": "0.40749"
    },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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