CVE-2026-102282 (GCVE-0-2026-102282)

Vulnerability from cvelistv5 – Published: 2026-10-05 17:00 – Updated: 2026-10-05 17:00
VLAI
Title
adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -> local privilege escalation
Summary
adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, adm-zip applies the Unix permission bits stored in a zip entry directly to the extracted file via `fs.chmodSync()` when `keepOriginalPermission=true` is passed to `extractAllTo()`/`extractEntryTo()` — and it never filters the setuid/setgid/sticky bits out of those bits. A zip crafted by an attacker can therefore produce an extracted binary with mode `04755`. When extraction runs as root (the default posture in Docker builds, CI runners, and privileged install steps — the exact environments where this flag is used), the resulting root-owned setuid file is executed later by a lesser-privileged user, turning the attacker's code into a root execution. Version 0.6.1 fixes the issue.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-732 - Incorrect Permission Assignment for Critical Resource
Assigner
References
Impacted products
Vendor Product Version CPE status
cthackers adm-zip Affected: < 0.6.1
guessed Create a notification for this product.
Show details on NVD website
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{
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          "vendor": "cthackers",
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          "value": "adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, adm-zip applies the Unix permission bits stored in a zip entry directly to the extracted file via `fs.chmodSync()` when `keepOriginalPermission=true` is passed to `extractAllTo()`/`extractEntryTo()` \u2014 and it never filters the setuid/setgid/sticky bits out of those bits. A zip crafted by an attacker can therefore produce an extracted binary with mode `04755`. When extraction runs as root (the default posture in Docker builds, CI runners, and privileged install steps \u2014 the exact environments where this flag is used), the resulting root-owned setuid file is executed later by a lesser-privileged user, turning the attacker\u0027s code into a root execution. Version 0.6.1 fixes the issue."
        }
      ],
      "metrics": [
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            "attackVector": "LOCAL",
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            "baseScore": 7.1,
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            "scope": "UNCHANGED",
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-732",
              "description": "CWE-732: Incorrect Permission Assignment for Critical Resource",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T17:00:00.250Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44",
          "tags": [
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          ],
          "url": "https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44"
        },
        {
          "name": "https://github.com/cthackers/adm-zip/commit/6a63c339b83c52915483efacda517660a7a7bf87",
          "tags": [
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          ],
          "url": "https://github.com/cthackers/adm-zip/commit/6a63c339b83c52915483efacda517660a7a7bf87"
        },
        {
          "name": "https://github.com/cthackers/adm-zip/releases/tag/v0.6.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cthackers/adm-zip/releases/tag/v0.6.1"
        }
      ],
      "source": {
        "advisory": "GHSA-j5f4-cc29-5x44",
        "discovery": "UNKNOWN"
      },
      "title": "adm-zip extraction preserves SUID/SGID bits from untrusted ZIPs -\u003e local privilege escalation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-102282",
    "datePublished": "2026-10-05T17:00:00.250Z",
    "dateReserved": "2026-09-28T20:11:16.659Z",
    "dateUpdated": "2026-10-05T17:00:00.250Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-06",
      "epss": "0.00149",
      "percentile": "0.03558"
    },
    "nvd": {
      "cve": {
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                "vendor": "cthackers",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 0.6.1"
                  }
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            ],
            "source": "security-advisories@github.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, adm-zip applies the Unix permission bits stored in a zip entry directly to the extracted file via `fs.chmodSync()` when `keepOriginalPermission=true` is passed to `extractAllTo()`/`extractEntryTo()` \u2014 and it never filters the setuid/setgid/sticky bits out of those bits. A zip crafted by an attacker can therefore produce an extracted binary with mode `04755`. When extraction runs as root (the default posture in Docker builds, CI runners, and privileged install steps \u2014 the exact environments where this flag is used), the resulting root-owned setuid file is executed later by a lesser-privileged user, turning the attacker\u0027s code into a root execution. Version 0.6.1 fixes the issue."
          }
        ],
        "id": "CVE-2026-102282",
        "lastModified": "2026-10-05T17:17:09.230",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
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            }
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        },
        "published": "2026-10-05T17:17:08.110",
        "references": [
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/cthackers/adm-zip/commit/6a63c339b83c52915483efacda517660a7a7bf87"
          },
          {
            "source": "security-advisories@github.com",
            "url": "https://github.com/cthackers/adm-zip/releases/tag/v0.6.1"
          },
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            "url": "https://github.com/cthackers/adm-zip/security/advisories/GHSA-j5f4-cc29-5x44"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-732"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-06T06:36:57+00:00",
      "cve": "CVE-2026-102282",
      "id": "CVE-2026-102282",
      "initial_release_date": "2026-10-05T17:00:00.250000+00:00",
      "product_status:known_affected": "24",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "adm-zip: adm-zip: Privilege escalation via unfiltered permission bits in extracted archives",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-102282.json",
      "version": "3"
    }
  }
}



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