Arbitrary file reads via Git argument injection
Published Apr 9, 2026 · Updated Apr 9, 2026
Argument injection in HashiCorp go-getter before 1.8.6 allows remote attackers to read arbitrary host files through a crafted Git URL. The GitGetter checkout method passes a ref beginning with a hyphen to git checkout without validation, causing Git to interpret the ref as an option. Exposure requires a consuming application to accept attacker-controlled Git URLs and execute Git on the host; the reported impact is file disclosure only.
Summary
What happened
Argument injection in HashiCorp go-getter before 1.8.6 allows remote attackers to read arbitrary host files through a crafted Git URL. The GitGetter checkout method passes a ref beginning with a hyphen to git checkout without validation, causing Git to interpret the ref as an option. Exposure requires a consuming application to accept attacker-controlled Git URLs and execute Git on the host; the reported impact is file disclosure only.
The record
- CVE
- CVE-2026-4660
- Published
- Apr 9, 2026
- Updated
- Apr 9, 2026
- Vendor
- HashiCorp
- Product
- go-getter
- Classifications
- CWE-200, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 9, 2026CVE publishedPublication date reported by the CVE source.
- Apr 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <1.8.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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