CVE-2026-4660: Github.com/hashicorp/go getter HashiCorp's Go-getter Library May Allow Vulnerability

HIGH
Advisory Identifier: GHSA-92mm-2pjq-r785
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CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2026-4660 is a HIGH (CVSS 7.5) hashicorp's go-getter library may allow vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Github.com/hashicorp/go getter libraries in the Go ecosystem. The issue involves hashicorp's go-getter library may allow arbitrary file reads. Remediation is available by upgrading affected packages to version 1.8.6.

CVE-2026-4660 at a Glance

CVE Identifier CVE-2026-4660
GHSA Identifier GHSA-92mm-2pjq-r785
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Github.com/hashicorp/go getter
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2026-4660

To remediate this vulnerability, upgrade all affected Github.com/hashicorp/go getter dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/hashicorp/go-getter fixed: 1.8.6 
Upgrade github.com/hashicorp/go-getter to 1.8.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/hashicorp/go-getter

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-4660, inspect your project dependencies for Github.com/hashicorp/go getter:

inspect dependencies for github.com/hashicorp/go-getter

Analyze the terminal output to locate any version of Github.com/hashicorp/go getter in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.8.6), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Github.com/hashicorp/go getter, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

HashiCorp's go-getter library up to v1.8.5 may allow arbitrary file reads on the file system during certain git operations through a maliciously crafted URL. This is fixed in go-getter v1.8.6. This vulnerability does not affect the go-getter/v2 branch and package.

CVE-2026-4660 Affected Github.com/hashicorp/go getter Versions

1 component(s)
Fixed Versions:
1.8.6
Product / Package Ecosystem Affected Versions Fixed Version
github.com/hashicorp/go-getter
golang/github.com/hashicorp/go-getter
Go
< 1.8.6
1.8.6

References

NVD — CVE-2026-4660 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4660
discuss.hashicorp.com/t/hcsec-2026-04-go-... WEB
https://discuss.hashicorp.com/t/hcsec-2026-04-go-getter-may-allow-to-arbitrary-filesystem-reads-through-git-operations/77311
Github.com/hashicorp/go getter Source Repository REPOSITORY
https://github.com/hashicorp/go-getter

Frequently Asked Questions

What is CVE-2026-4660?
CVE-2026-4660 is a security vulnerability in Github.com/hashicorp/go getter involving HashiCorp's go-getter library may allow arbitrary file reads under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Github.com/hashicorp/go getter versions are affected?
Affected versions include releases prior to 1.8.6 across affected packages: github.com/hashicorp/go-getter.
What version fixes CVE-2026-4660?
Upgrading to 1.8.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/hashicorp/go-getter affected?
Yes, github.com/hashicorp/go-getter is affected in releases prior to 1.8.6. Upgrade your dependency to 1.8.6 or later.
What is the CVSS score of CVE-2026-4660?
CVE-2026-4660 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2026-4660?
CVE-2026-4660 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Go dependencies for CVE-2026-4660?
Run the dependency tree command: 'inspect dependencies for github.com/hashicorp/go-getter'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-92mm-2pjq-r785",
  "modified" : "2026-04-10T14:11:16Z",
  "published" : "2026-04-09T15:35:07Z",
  "aliases" : [ "CVE-2026-4660" ],
  "summary" : "HashiCorp's go-getter library may allow arbitrary file reads",
  "details" : "HashiCorp's go-getter library up to v1.8.5 may allow arbitrary file reads on the file system during certain git operations through a maliciously crafted URL. This is fixed in go-getter v1.8.6. This vulnerability does not affect the go-getter/v2 branch and package.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/hashicorp/go-getter"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.8.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-4660"
  }, {
    "type" : "WEB",
    "url" : "https://discuss.hashicorp.com/t/hcsec-2026-04-go-getter-may-allow-to-arbitrary-filesystem-reads-through-git-operations/77311"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/hashicorp/go-getter"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-10T14:11:16Z",
    "nvd_published_at" : "2026-04-09T14:16:32Z"
  }
}