Excelize: Negative shared-string index causes panic in GetCellValue and GetRows

{
  "id": "f97af23c48a655e61c4a8258242ec9acad2bdf3256d0e1a0e5838ec92b180044",
  "url": "https://osv.dev/vulnerability/CVE-2026-59162",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Excelize: Negative shared-string index causes panic in GetCellValue and GetRows",
    "summary": "Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. Prior to 2.11.0, Excelize parses shared-string cell values with strconv.Atoi and checks only the upper bound before indexing the shared string slice, allowing an XLSX file containing a shared-string cell with -1 to trigger sharedStrings[-1] and panic when read through GetCellValue or GetRows. This issue is fixed in version 2.11.0.",
    "evidence": "osv:CVE-2026-59162",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-59162",
      "aliases": [
        "CVE-2026-59162",
        "GHSA-fx5j-qcqg-grpf",
        "GO-2026-6452"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/qax-os/excelize",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "90ff348959dd842cbf3a4fbd93a78afbe18db476"
                },
                {
                  "fixed": "93f0b3caed37f21ef5079e3259c6c21dcfe68453"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:excelize:excelize:*:*:*:*:*:go:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.11.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "93f0b3caed37f21ef5079e3259c6c21dcfe68453"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "90ff348959dd842cbf3a4fbd93a78afbe18db476"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.11.0"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.10.1",
            "v2.10.0",
            "v2.9.1",
            "v2.9.0",
            "v2.8.1",
            "v2.8.0",
            "v2.7.1",
            "v2.7.0",
            "v2.6.1",
            "v2.6.0",
            "v2.5.0",
            "v2.4.1",
            "v2.4.0",
            "v2.3.2",
            "v2.3.1",
            "v2.3.0",
            "v2.2.0",
            "v2.1.0",
            "v2.0.2",
            "v2.0.1",
            "v2.0.0",
            "v1.4.1",
            "v1.4.0",
            "v1.3.0",
            "v1.2.0",
            "v1.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59162.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.926903877Z",
      "provider": "osv",
      "references": [
        "https://github.com/qax-os/excelize/releases/tag/v2.11.0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59162.json",
        "https://github.com/qax-os/excelize/security/advisories/GHSA-fx5j-qcqg-grpf",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-59162",
        "https://github.com/qax-os/excelize/commit/93f0b3caed37f21ef5079e3259c6c21dcfe68453",
        "https://github.com/qax-os/excelize/pull/2331"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-248",
          "CWE-755"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59162.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-59162",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 490600,
  "published_at": "2026-07-10T15:51:26.078+00:00"
}