CVE-2026-110753

Status: Awaiting AnalysisCritical (9.8)—

Severity9.8Critical · CVSS 3.1

Exploitation probability0.19 %higher than 8% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Text::CSV_XS versions from 1.46 before 1.65 for Perl have a use-after-free of bind_columns variables when skip_empty_rows skips an empty line in getline.

With bind_columns, the parser writes each field into the caller's own scalar without taking a reference to it. When skip_empty_rows skips an empty last line, the parser frees the current field scalar without checking whether it is bound, dropping one reference from the application's variable. The "eof" mode does the same on any empty line.

The variable is then freed while the application still references it, so later code uses freed memory and can crash the process.

CVSS

Base score: 9.8
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.19 %
Percentile among all scored CVEs: 8
Score date: 10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access90 %
Primary impactT1499 Endpoint Denial of Serviceimpact65 %

Vector AV:N/PR:N/UI:N explotable remotamente sin credenciales; el texto indica que el uso de memoria liberada puede provocar la caída del proceso (DoS). No se sustenta ejecución de comandos (T1059).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

CSV Project — Text CSV XS FOR Perl^AI

CWEs

CWE-416, CWE-911

References

Show 2 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2026-110753",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-110753",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-20T18:14:16.549927Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "repo": "https://github.com/cpan-authors/Text-CSV_XS",
          "modules": [
            "Text::CSV_XS"
          ],
          "versions": [
            {
              "status": "affected",
              "version": "1.46",
              "lessThan": "1.65",
              "versionType": "custom"
            }
          ],
          "packageURL": "pkg:cpan/Text-CSV_XS",
          "packageName": "Text-CSV_XS",
          "programFiles": [
            "CSV_XS.xs"
          ],
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "Text::CSV_XS::getline"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-16T23:17:00.530",
  "references": [
    {
      "url": "https://github.com/cpan-authors/Text-CSV_XS/commit/f082d5c8aab1b8d16b6181d4f3042a06947e260f.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/HMBRAND/Text-CSV_XS-1.65/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        },
        {
          "lang": "en",
          "value": "CWE-911"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Text::CSV_XS versions from 1.46 before 1.65 for Perl have a use-after-free of bind_columns variables when skip_empty_rows skips an empty line in getline.\n\nWith bind_columns, the parser writes each field into the caller's own scalar without taking a reference to it. When skip_empty_rows skips an empty last line, the parser frees the current field scalar without checking whether it is bound, dropping one reference from the application's variable. The \"eof\" mode does the same on any empty line.\n\nThe variable is then freed while the application still references it, so later code uses freed memory and can crash the process."
    }
  ],
  "lastModified": "2026-10-20T19:17:29.540",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
}