Vulnerability-Lookup

GHSA-M43M-9CWC-JQ98

Vulnerability from github – Published: 2026-01-18 12:31 – Updated: 2026-01-18 12:31

Details

A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Severity ?

5.3 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

1.9 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-15537"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-18T10:15:52Z",
    "severity": "MODERATE"
  },
  "details": "A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.",
  "id": "GHSA-m43m-9cwc-jq98",
  "modified": "2026-01-18T12:31:06Z",
  "published": "2026-01-18T12:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15537"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mapnik/mapnik/issues/4543"
    },
    {
      "type": "WEB",
      "url": "https://github.com/oneafter/1218/blob/main/repro"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.341709"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.341709"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.733348"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-15537 (GCVE-0-2025-15537)

Vulnerability from cvelistv5 – Published: 2026-01-18 10:02 – Updated: 2026-01-20 16:53

Title

Mapnik dbfile.cpp string_value heap-based overflow

Summary

Severity ?

4.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

5.3 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

5.3 (Medium)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-119 - Memory Corruption

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.341709	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.341709	signaturepermissions-required
	https://vuldb.com/?submit.733348	third-party-advisory
	https://github.com/mapnik/mapnik/issues/4543	issue-tracking
	https://github.com/oneafter/1218/blob/main/repro	exploit

Impacted products

	Vendor	Product	Version
	n/a	Mapnik	Affected: 4.0 Affected: 4.1 Affected: 4.2.0

Credits

Oneafter (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-15537",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-20T16:52:58.311049Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-20T16:53:04.476Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/mapnik/mapnik/issues/4543"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Mapnik",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "4.0"
            },
            {
              "status": "affected",
              "version": "4.1"
            },
            {
              "status": "affected",
              "version": "4.2.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Oneafter (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 4.3,
            "vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-18T10:02:07.636Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-341709 | Mapnik dbfile.cpp string_value heap-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.341709"
        },
        {
          "name": "VDB-341709 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.341709"
        },
        {
          "name": "Submit #733348 | mapnik Mapnik v4.2.0 and master-branch Heap-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.733348"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/mapnik/mapnik/issues/4543"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/oneafter/1218/blob/main/repro"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-01-17T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-01-17T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-01-17T17:34:55.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Mapnik dbfile.cpp string_value heap-based overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-15537",
    "datePublished": "2026-01-18T10:02:07.636Z",
    "dateReserved": "2026-01-17T16:29:49.299Z",
    "dateUpdated": "2026-01-20T16:53:04.476Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M43M-9CWC-JQ98

CVE-2025-15537 (GCVE-0-2025-15537)

Tags

Sightings

Nomenclature