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Open Babel zipstreamimpl.h underflow memory corruption

Type: advisorySources: OSV

A security vulnerability has been detected in Open Babel up to 3.1.1. This vulnerability affects the function zlib_stream::basic_unzip_streambuf::underflow in the library /src/zipstreamimpl.h. Such manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-10995
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:37 UTC · Revision 1

Source evidence

Open Babel zipstreamimpl.h underflow memory corruption

core-osv · Original source

Published 26 Sept 2025, 02:02 UTC

A security vulnerability has been detected in Open Babel up to 3.1.1. This vulnerability affects the function zlib_stream::basic_unzip_streambuf::underflow in the library /src/zipstreamimpl.h. Such manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used.

osv:CVE-2025-10995
Complete source record
{
  "id": "44de577dd10fbe14a6388d99c4f07c896269c0991785fa5f77de67dcd3874cd0",
  "url": "https://osv.dev/vulnerability/CVE-2025-10995",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Open Babel zipstreamimpl.h underflow memory corruption",
    "summary": "A security vulnerability has been detected in Open Babel up to 3.1.1. This vulnerability affects the function zlib_stream::basic_unzip_streambuf::underflow in the library /src/zipstreamimpl.h. Such manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used.",
    "evidence": "osv:CVE-2025-10995",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2025-10995",
      "aliases": [
        "CVE-2025-10995",
        "GHSA-8j3x-m868-cpw8",
        "PYSEC-2026-2776"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "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"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openbabel/openbabel",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1e593abc1edf47352d5e8a0887654edf69a2f5f3"
                },
                {
                  "last_affected": "cbd4db43f8908b874864280fdc03bf92569eebc1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "3.1.0"
                      },
                      {
                        "last_affected": "3.1.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "3.1.1"
                      },
                      {
                        "last_affected": "3.1.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "cpe": "cpe:2.3:a:openbabel:open_babel:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "3.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "3.1.0",
            "3.1.1",
            "openbabel-3-1-0",
            "openbabel-3-1-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-10995.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.000231021Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/10xxx/CVE-2025-10995.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-10995",
        "https://vuldb.com/?id.325923",
        "https://vuldb.com/?submit.654059",
        "https://github.com/openbabel/openbabel/issues/2832",
        "https://vuldb.com/?ctiid.325923",
        "https://github.com/user-attachments/files/22318572/poc.zip"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-119"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/10xxx/CVE-2025-10995.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-10995",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496887,
  "published_at": "2025-09-26T02:02:10.346+00:00"
}