CVE-2026-116267 (GCVE-0-2026-116267)

Vulnerability from cvelistv5 – Published: 2026-10-28 17:32 – Updated: 2026-10-28 17:32
VLAI
Title
MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message
Summary
MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message. Each stored parser diagnostic is indented by three spaces per nesting level. When a message nested N levels deep ends without its closing boundaries, every level logs an error at its own depth, so the stored diagnostics grow with the square of N. The defaults place no limit on nesting depth.
Severity
No CVSS data available.
CWE
  • CWE-407 - Inefficient Algorithmic Complexity
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 62/100 over 346 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Affected: 0 , < 5.521 (custom)
Show details on NVD website
To clipboard 

{
  "containers": {
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      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "MIME::Parser"
          ],
          "packageName": "MIME-tools",
          "packageURL": "pkg:cpan/MIME-tools",
          "programFiles": [
            "lib/MIME/Parser/Results.pm",
            "lib/MIME/Parser.pm"
          ],
          "programRoutines": [
            {
              "name": "MIME::Parser::Results::indent"
            }
          ],
          "repo": "https://salsa.debian.org/dskoll/mime-tools",
          "versions": [
            {
              "lessThan": "5.521",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message.\n\nEach stored parser diagnostic is indented by three spaces per nesting level. When a message nested N levels deep ends without its closing boundaries, every level logs an error at its own depth, so the stored diagnostics grow with the square of N. The defaults place no limit on nesting depth."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-407",
              "description": "CWE-407 Inefficient Algorithmic Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T17:32:45.677Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to MIME-tools 5.521 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-116267",
    "datePublished": "2026-10-28T17:32:45.677Z",
    "dateReserved": "2026-10-25T18:05:02.235Z",
    "dateUpdated": "2026-10-28T17:32:45.677Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-116267",
      "date": "2026-11-01",
      "epss": "0.00177",
      "percentile": "0.07259"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://cpan.org/modules",
                "defaultStatus": "unaffected",
                "modules": [
                  "MIME::Parser"
                ],
                "packageName": "MIME-tools",
                "packageURL": "pkg:cpan/MIME-tools",
                "programFiles": [
                  "lib/MIME/Parser/Results.pm",
                  "lib/MIME/Parser.pm"
                ],
                "programRoutines": [
                  {
                    "name": "MIME::Parser::Results::indent"
                  }
                ],
                "repo": "https://salsa.debian.org/dskoll/mime-tools",
                "versions": [
                  {
                    "lessThan": "5.521",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message.\n\nEach stored parser diagnostic is indented by three spaces per nesting level. When a message nested N levels deep ends without its closing boundaries, every level logs an error at its own depth, so the stored diagnostics grow with the square of N. The defaults place no limit on nesting depth."
          }
        ],
        "id": "CVE-2026-116267",
        "lastModified": "2026-10-29T15:11:53.000",
        "metrics": {},
        "published": "2026-10-28T18:17:13.123",
        "references": [
          {
            "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
            "url": "https://metacpan.org/release/DSKOLL/MIME-tools-5.521/changes"
          }
        ],
        "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-407"
              }
            ],
            "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-31T07:20:26+00:00",
      "cve": "CVE-2026-116267",
      "id": "CVE-2026-116267",
      "initial_release_date": "2026-10-28T17:32:45.677000+00:00",
      "product_status:known_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "perl-MIME-tools: perl-MIME-tools: Denial of Service via memory exhaustion from deeply nested messages",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-116267.json",
      "version": "3"
    }
  }
}



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