Host file disclosure via unchecked container symlinks
Published Aug 25, 2025 · Updated Aug 25, 2025
Symlink following in Airlink Labs Airlink Daemon 1.0.0 allows attackers with container access to read arbitrary host files. In src/routes/fileSystem.ts, sanitizePath joins an untrusted relative path and checks only its lexical prefix, so later file operations follow links outside /app/data. Exploitation requires access to the affected container and an arbitrary host path bind-mounted at /app/data; exposed data depends on that mount.
Summary
What happened
Symlink following in Airlink Labs Airlink Daemon 1.0.0 allows attackers with container access to read arbitrary host files. In src/routes/fileSystem.ts, sanitizePath joins an untrusted relative path and checks only its lexical prefix, so later file operations follow links outside /app/data. Exploitation requires access to the affected container and an arbitrary host path bind-mounted at /app/data; exposed data depends on that mount.
The record
- CVE
- CVE-2025-57802
- Published
- Aug 25, 2025
- Updated
- Aug 25, 2025
- Vendor
- Airlink Labs
- Product
- Airlink Daemon
- Classifications
- CWE-61, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 25, 2025CVE publishedPublication date reported by the CVE source.
- Aug 25, 2025Record 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== 1.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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