Local secret disclosure via empty allowlist wildcard
Published May 14, 2026 · Updated May 14, 2026
Environment variable exposure in Crabbox before 0.12.0 allows context-dependent attackers to disclose local secrets through a malicious repository. The envAllowed function trims the asterisk from a bare wildcard to an empty prefix, which matches every environment-variable name and serializes each value into the remote command prefix. Exploitation requires an operator to run Crabbox inside the crafted repository; the remote command environment then receives API, cloud, and broker credentials.
Summary
What happened
Environment variable exposure in Crabbox before 0.12.0 allows context-dependent attackers to disclose local secrets through a malicious repository. The envAllowed function trims the asterisk from a bare wildcard to an empty prefix, which matches every environment-variable name and serializes each value into the remote command prefix. Exploitation requires an operator to run Crabbox inside the crafted repository; the remote command environment then receives API, cloud, and broker credentials.
The record
- CVE
- CVE-2026-8634
- Published
- May 14, 2026
- Updated
- May 14, 2026
- Vendor
- OpenClaw Foundation
- Product
- Crabbox
- Classifications
- CWE-94, T1552
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 14, 2026CVE publishedPublication date reported by the CVE source.
- May 14, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <0.12.0
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
- Crabbox bare env wildcard safe reproductionproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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