GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle

{
  "id": "92fb716680b0f06dea23c637d8706e5f68b36298e75162e5c01ae2323a95d727",
  "url": "https://osv.dev/vulnerability/CVE-2026-11526",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle",
    "summary": "GD versions before 2.86 for Perl allow OS command injection and file overwrite via a 2-arg open() of filename arguments in _make_filehandle. GD::Image::_make_filehandle opens a filename argument with Perl's 2-arg open(), so a filename that begins or ends with a pipe (\"| cmd\", \"cmd |\") or begins with a redirect (\"> path\", \">> path\") is run as a command or redirect rather than opened as a file. _make_filehandle is the single open path behind every filename-accepting constructor (new, newFromPng, newFromJpeg, and the rest); the in-memory *Data variants do not open a path and are unaffected. Any caller that forwards untrusted input to one of these constructors as a pathname can run an arbitrary command or truncate a file under the process UID.",
    "evidence": "osv:CVE-2026-11526",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-11526",
      "aliases": [
        "CVE-2026-11526"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/lstein/perl-gd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "91116a6c3395326f277b64cbdd130281ede4b75a"
                },
                {
                  "fixed": "67b163713c6c78dfeb693da0978ae934e5cd8210"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.86"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "67b163713c6c78dfeb693da0978ae934e5cd8210"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.85",
            "release_2_85",
            "v2.84",
            "release_2_84",
            "v2.83",
            "release_2_83",
            "release_2_82",
            "release_2_81",
            "release_2_80",
            "release_2_79",
            "release_2_78",
            "v2.77",
            "release_2_77",
            "release_2_76",
            "release_2_75",
            "release_2_74",
            "release_2_73",
            "release_2_72",
            "release_2_71",
            "release_2_70",
            "release_2_69",
            "release_2_68",
            "release_2_67",
            "release_2_66",
            "release_2_65",
            "release_2_64",
            "release_2_63",
            "release_2_62",
            "release_2_61",
            "release_2_60",
            "release_2_59",
            "release_2_58",
            "v2.56_03",
            "v2.56_02",
            "v2.56_01",
            "release-2_56",
            "release-2_51",
            "release_2_49",
            "release-2_49",
            "release-2_48"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-11526.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:49.304195052Z",
      "provider": "osv",
      "references": [
        "https://cpan.org/modules",
        "https://lists.debian.org/debian-lts-announce/2026/06/msg00027.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/11xxx/CVE-2026-11526.json",
        "https://metacpan.org/release/RURBAN/GD-2.86/changes",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-11526",
        "https://github.com/lstein/Perl-GD/commit/67b163713c6c78dfeb693da0978ae934e5cd8210.patch",
        "https://github.com/lstein/Perl-GD"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-73",
          "CWE-78"
        ],
        "cna_assigner": "CPANSec",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/11xxx/CVE-2026-11526.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-11526",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 517425,
  "published_at": "2026-06-14T11:39:21.122+00:00"
}