CVE-2026-78638 (GCVE-0-2026-78638)

Vulnerability from cvelistv5 – Published: 2026-08-25 05:30 – Updated: 2026-08-25 05:30
VLAI
Title
peerigon unzip-crx/unzip-crx-3 Archive Extraction index.js unzip path traversal
Summary
A flaw has been found in peerigon unzip-crx and unzip-crx-3 up to 0.2.0. This affects the function unzip of the file dist/index.js of the component Archive Extraction. Executing a manipulation of the argument destination can lead to path traversal. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CWE
References
URL Tags
https://vuldb.com/vuln/394865 vdb-entrytechnical-description
https://vuldb.com/vuln/394865/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-78638 third-party-advisory
https://vuldb.com/submit/886400 third-party-advisory
https://github.com/peerigon/unzip-crx/issues/19 exploitissue-tracking
https://github.com/peerigon/unzip-crx/ product
Impacted products
Vendor Product Version CPE status
peerigon unzip-crx Affected: 0.1
Affected: 0.2.0
    cpe:2.3:a:peerigon:unzip-crx:*:*:*:*:*:*:*:*
Create a notification for this product.
peerigon unzip-crx-3 Affected: 0.1
Affected: 0.2.0
    cpe:2.3:a:peerigon:unzip-crx-3:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:peerigon:unzip-crx:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Archive Extraction"
          ],
          "product": "unzip-crx",
          "vendor": "peerigon",
          "versions": [
            {
              "status": "affected",
              "version": "0.1"
            },
            {
              "status": "affected",
              "version": "0.2.0"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:peerigon:unzip-crx-3:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Archive Extraction"
          ],
          "product": "unzip-crx-3",
          "vendor": "peerigon",
          "versions": [
            {
              "status": "affected",
              "version": "0.1"
            },
            {
              "status": "affected",
              "version": "0.2.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Classif1ed_mick (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has been found in peerigon unzip-crx and unzip-crx-3 up to 0.2.0. This affects the function unzip of the file dist/index.js of the component Archive Extraction. Executing a manipulation of the argument destination can lead to path traversal. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
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        },
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            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
            "version": "3.1"
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            "version": "3.0"
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        },
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            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
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      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "Path Traversal",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-25T05:30:08.899Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-394865 | peerigon unzip-crx/unzip-crx-3 Archive Extraction index.js unzip path traversal",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/394865"
        },
        {
          "name": "VDB-394865 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/394865/cti"
        },
        {
          "name": "CVE-2026-78638 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-78638"
        },
        {
          "name": "Submit #886400 | peerigon / unzip-crx-3 (open source, unmaintained) unzip-crx-3 (npm) CRX/ZIP extraction library \u003c=0.2.0 Path Traversal",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/886400"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/peerigon/unzip-crx/issues/19"
        },
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          "tags": [
            "product"
          ],
          "url": "https://github.com/peerigon/unzip-crx/"
        }
      ],
      "timeline": [
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          "lang": "en",
          "time": "2026-08-24T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-25T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-08-25T01:08:26.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "peerigon unzip-crx/unzip-crx-3 Archive Extraction index.js unzip path traversal",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-78638",
    "datePublished": "2026-08-25T05:30:08.899Z",
    "dateReserved": "2026-08-24T23:03:20.154Z",
    "dateUpdated": "2026-08-25T05:30:08.899Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-78638",
      "date": "2026-08-25",
      "epss": "0.00137",
      "percentile": "0.03342"
    },
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.

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