Vulnerability-Lookup

GHSA-34P9-PR49-JVVC

Vulnerability from github – Published: 2026-09-15 21:33 – Updated: 2026-09-15 21:33

Details

The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.

Severity

6.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-88922"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-281"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-15T20:19:19Z",
    "severity": "MODERATE"
  },
  "details": "The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.",
  "id": "GHSA-34p9-pr49-jvvc",
  "modified": "2026-09-15T21:33:02Z",
  "published": "2026-09-15T21:33:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-88922"
    },
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-39-go-getter-vulnerable-to-a-privilege-escalation-issue-in-its-archive-decompression-handling/77752"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-88922 (GCVE-0-2026-88922)

Vulnerability from cvelistv5 – Published: 2026-09-15 19:45 – Updated: 2026-09-15 19:45

Title

Go-getter vulnerable to a privilege escalation issue in its archive decompression handling

Summary

Severity

6.7 (Medium)


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

CWE

CWE-281 - Improper Preservation of Permissions

Assigner

HashiCorp mitre root

References

1 reference

URL	Tags
https://discuss.hashicorp.com/t/hcsec-2026-39-go-…

Impacted products

1 product

Vendor	Product	Version
HashiCorp	Shared library	Affected: 1.0.1 , < 2.2.4 (semver)

Credits

This issue was reported to HashiCorp by Kris Kennaway.

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "product": "Shared library",
          "repo": "https://github.com/hashicorp/go-getter",
          "vendor": "HashiCorp",
          "versions": [
            {
              "changes": [
                {
                  "at": "1.8.9",
                  "status": "unaffected"
                }
              ],
              "lessThan": "2.2.4",
              "status": "affected",
              "version": "1.0.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "This issue was reported to HashiCorp by Kris Kennaway."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4.\u003c/p\u003e\u003cbr/\u003e"
            }
          ],
          "value": "The go-getter library up to versions 1.8.8 and 2.2.3 is vulnerable to a privilege escalation issue in its archive decompression handling that may allow a crafted archive to cause extracted files to be created with elevated permission bits. Where extraction is performed by a privileged user, this may allow a local actor to obtain the privileges of the extracting process. This vulnerability (CVE-2026-88922) is fixed in go-getter 1.8.9 and 2.2.4."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-17",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-17: Using Malicious Files"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-281",
              "description": "CWE-281: Improper Preservation of Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-15T19:45:07.836Z",
        "orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
        "shortName": "HashiCorp"
      },
      "references": [
        {
          "url": "https://discuss.hashicorp.com/t/hcsec-2026-39-go-getter-vulnerable-to-a-privilege-escalation-issue-in-its-archive-decompression-handling/77752"
        }
      ],
      "source": {
        "advisory": "HCSEC-2026-39",
        "discovery": "EXTERNAL"
      },
      "title": "Go-getter vulnerable to a privilege escalation issue in its archive decompression handling"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc",
    "assignerShortName": "HashiCorp",
    "cveId": "CVE-2026-88922",
    "datePublished": "2026-09-15T19:45:07.836Z",
    "dateReserved": "2026-09-10T13:56:47.632Z",
    "dateUpdated": "2026-09-15T19:45:07.836Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-34P9-PR49-JVVC

CVE-2026-88922 (GCVE-0-2026-88922)

Tags

Sightings

Nomenclature