Arbitrary file read via subdirectory symlink following
Published Aug 15, 2025 · Updated Aug 15, 2025
Link-following in HashiCorp go-getter before 1.7.9 allows remote attackers to read host files through a crafted repository subdirectory. The copyDir path resolves a repository symlink and walks the resolved target without first rejecting a path that escapes the fetched source. A consuming application must fetch an attacker-controlled repository subdirectory; successful exploitation exposes readable filesystem content without altering it.
Summary
What happened
Link-following in HashiCorp go-getter before 1.7.9 allows remote attackers to read host files through a crafted repository subdirectory. The copyDir path resolves a repository symlink and walks the resolved target without first rejecting a path that escapes the fetched source. A consuming application must fetch an attacker-controlled repository subdirectory; successful exploitation exposes readable filesystem content without altering it.
The record
- CVE
- CVE-2025-8959
- Published
- Aug 15, 2025
- Updated
- Aug 15, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-59, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 15, 2025CVE publishedPublication date reported by the CVE source.
- Aug 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
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Published CVSS scores
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Attacks
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Technologies
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