Host file read and deletion via path traversal
Published May 6, 2026 · Updated May 6, 2026
Path traversal in NanoCo NanoClaw 1.2.0 and earlier allows local users to read host files or recursively delete directories. The host-side readOutboxFiles and clearOutbox functions trust container-controlled messages_out.id and content.files values as path components and follow traversal paths or symlinks without containment checks. Exploitation requires control of a writable agent container, including through prompt injection; resulting access is limited to files the NanoClaw host process can read or delete.
Summary
What happened
Path traversal in NanoCo NanoClaw 1.2.0 and earlier allows local users to read host files or recursively delete directories. The host-side readOutboxFiles and clearOutbox functions trust container-controlled messages_out.id and content.files values as path components and follow traversal paths or symlinks without containment checks. Exploitation requires control of a writable agent container, including through prompt injection; resulting access is limited to files the NanoClaw host process can read or delete.
The record
- CVE
- CVE-2026-7875
- Published
- May 6, 2026
- Updated
- May 6, 2026
- Vendor
- NanoCo
- Product
- NanoClaw
- Classifications
- CWE-22, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 6, 2026CVE publishedPublication date reported by the CVE source.
- May 6, 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=7814e45
What conditions does exploitation require?
What is affected?
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
- Outbox path-confinement regression testsproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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