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Medium

zziplib through 0.13.80 Out-of-Bounds Read via __zzip_parse_root_directory ZIP64 Parsing

Type: advisorySources: OSV

zziplib through 0.13.80 contains an out-of-bounds read vulnerability in __zzip_parse_root_directory() in zzip/zip.c that allows attackers to read past the mapped central directory in mmap builds due to an ineffective bounds check. Attackers can supply a crafted ZIP whose entry name ends at the central directory end, triggering 28-byte ZIP64 extra field over-reads via zzip_dir_open() that crash the process.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-111141
Confirmed fixed CVEs
Not specified
Updated in this feed
6 Nov 2026, 02:08 UTC · Revision 1

Source evidence

zziplib through 0.13.80 Out-of-Bounds Read via __zzip_parse_root_directory ZIP64 Parsing

core-osv · Original source

Published 15 Oct 2026, 18:57 UTC

zziplib through 0.13.80 contains an out-of-bounds read vulnerability in __zzip_parse_root_directory() in zzip/zip.c that allows attackers to read past the mapped central directory in mmap builds due to an ineffective bounds check. Attackers can supply a crafted ZIP whose entry name ends at the central directory end, triggering 28-byte ZIP64 extra field over-reads via zzip_dir_open() that crash the process.

osv:CVE-2026-111141
Complete source record
{
  "id": "ac47c5534d74b8aa67c680981859de131a7e251e6d18c5f08a29230272be0bc7",
  "url": "https://osv.dev/vulnerability/CVE-2026-111141",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "zziplib through 0.13.80 Out-of-Bounds Read via __zzip_parse_root_directory ZIP64 Parsing",
    "summary": "zziplib through 0.13.80 contains an out-of-bounds read vulnerability in __zzip_parse_root_directory() in zzip/zip.c that allows attackers to read past the mapped central directory in mmap builds due to an ineffective bounds check. Attackers can supply a crafted ZIP whose entry name ends at the central directory end, triggering 28-byte ZIP64 extra field over-reads via zzip_dir_open() that crash the process.",
    "evidence": "osv:CVE-2026-111141",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-111141",
      "aliases": [
        "CVE-2026-111141"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/gdraheim/zziplib",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "f58313c1f65f46bf73f3526d1afd4d6bb46cc4ae"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.13.80"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.13.80"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.13.80",
            "v0.13.79",
            "v0.13.78",
            "v0.13.77",
            "v0.13.76",
            "v0.13.75",
            "v0.13.74",
            "v0.13.73",
            "v0.13.72",
            "v0.13.69",
            "v0.13.68",
            "v0.13.67",
            "v0.13.66",
            "v0.13.65",
            "v0.13.64",
            "v0.13.63",
            "v0.13.62",
            "v0.13.61",
            "v0.13.60",
            "v0.13.59",
            "v0.13.58",
            "v0.13.57",
            "v0.13.56",
            "v0.13.55",
            "v0.13.54",
            "v0.13.52",
            "v0.13.51",
            "v0.13.50",
            "v0.13.48",
            "v0.13.36"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111141.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.212901488Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111141.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111141",
        "https://www.vulncheck.com/advisories/zziplib-through-0.13.80-out-of-bounds-read-via-zzip-parse-root-directory-zip64-parsing",
        "https://github.com/gdraheim/zziplib",
        "https://github.com/gdraheim/zziplib/blob/f58313c1f65f46bf73f3526d1afd4d6bb46cc4ae/zzip/zip.c#L530-L558",
        "https://hackmd.io/@haind-pwn/zziplib-zip-central-directory-oob-read"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-125"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111141.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111141",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514142,
  "published_at": "2026-10-15T18:57:33.318+00:00"
}