CVE-2025-52885

Full vulnerability record from the local CVENow database.

Description

Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot class. The issue arises from the use of raw pointers to elements of a `std::vector`, which can lead to dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap stores references to `std::vector` elements using raw pointers. These pointers may become invalid when the vector is resized. This vulnerability is a common security problem involving the use of raw pointers to `std::vectors`. Internally, `std::vector `stores its elements in a dynamically allocated array. When the array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and moves all the existing elements to the new location. At this point if any pointers to elements are stored before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0 contains a patch for the issue.

Severity

MEDIUM

CVSS score

6.1 (v4.0)

Vulnerability status

Deferred

Source identifier

[email protected]

Published

2025-10-10 23:15:36.397000

Last modified

2026-10-19 16:10:00.260000

View original CVE JSON

{
  "id": "CVE-2025-52885",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-10T23:15:36.397",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Poppler ia a library for rendering PDF files, and examining or modifying their structure. A use-after-free (write) vulnerability has been detected in versions Poppler prior to 25.10.0 within the StructTreeRoot class. The issue arises from the use of raw pointers to elements of a `std::vector`, which can lead to dangling pointers when the vector is resized. The vulnerability stems from the way that refToParentMap stores references to `std::vector` elements using raw pointers. These pointers may become invalid when the vector is resized. This vulnerability is a common security problem involving the use of raw pointers to `std::vectors`. Internally, `std::vector `stores its elements in a dynamically allocated array. When the array reaches its capacity and a new element is added, the vector reallocates a larger block of memory and moves all the existing elements to the new location. At this point if any pointers to elements are stored before a resize occurs, they become dangling pointers once the reallocation happens. Version 25.10.0 contains a patch for the issue."
    },
    {
      "lang": "es",
      "value": "Poppler es una biblioteca para renderizar archivos PDF, y examinar o modificar su estructura. Se ha detectado una vulnerabilidad de uso después de liberación (escritura) en versiones de Poppler anteriores a la 25.10.0 dentro de la clase StructTreeRoot. El problema surge del uso de punteros crudos a elementos de un 'std::vector', lo que puede llevar a punteros colgantes cuando el vector se redimensiona. La vulnerabilidad se origina en la forma en que refToParentMap almacena referencias a elementos de 'std::vector' utilizando punteros crudos. Estos punteros pueden volverse inválidos cuando el vector se redimensiona. Esta vulnerabilidad es un problema de seguridad común que implica el uso de punteros crudos a 'std::vectors'. Internamente, 'std::vector' almacena sus elementos en un array asignado dinámicamente. Cuando el array alcanza su capacidad y se añade un nuevo elemento, el vector reasigna un bloque de memoria más grande y mueve todos los elementos existentes a la nueva ubicación. En este punto, si se almacenan punteros a elementos antes de que ocurra un redimensionamiento, se convierten en punteros colgantes una vez que ocurre la reasignación. La versión 25.10.0 contiene un parche para el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "poppler",
          "product": "poppler",
          "versions": [
            {
              "version": "< 25.10.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "UNREPORTED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-14T14:59:44.878328Z",
          "id": "CVE-2025-52885",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/1884",
      "source": "[email protected]"
    },
    {
      "url": "https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/1884#note_3114334",
      "source": "[email protected]"
    },
    {
      "url": "https://securitylab.github.com/advisories/GHSL-2025-042_poppler/",
      "source": "[email protected]"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2025/10/13/2",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}