CVE-2026-8634: Crabbox < v0.12.0 Environment Variable Information Disclosure
Crabbox prior to v0.12.0 contains an environment variable exposure vulnerability that allows attackers with access to a malicious or compromised repository to forward local secrets such as API tokens, cloud credentials, and broker tokens into the remote command environment. Attackers can exploit overly permissive environment variable allowlisting in repo-local Crabbox configuration to serialize sensitive environment variables into remote command execution, exposing credentials to the remote environment.
Security readout for executives and security teams
Plain-English summary
Crabbox versions before v0.12.0 can leak local environment secrets when used with a malicious or compromised repository. A repo-local Crabbox configuration can cause API tokens, cloud credentials, or broker tokens from a user’s machine to be forwarded into a remote command environment.
Executive priority
Treat as urgent for teams using Crabbox with cloud, API, or broker credentials. Prioritize upgrade, credential exposure review, and secret rotation where affected repositories were processed.
Technical view
The issue is overly permissive environment variable allowlisting in repo-local Crabbox configuration. Prior to v0.12.0, sensitive local environment variables can be serialized into remote command execution. The source bundle lists CVSS 9.3, CVSS v4.0, and CWE-94.
Likely exposure
Exposure is most likely for developers, CI jobs, or automation running affected Crabbox versions against untrusted, malicious, or compromised repositories while sensitive secrets are present in local environment variables.
Exploitation context
The bundle does not show CISA KEV listing or confirmed active exploitation. Practical abuse requires a malicious or compromised repository that can influence repo-local Crabbox configuration and a victim environment containing valuable secrets.
Researcher notes
The affected range is stated as prior to v0.12.0, with a patch commit and release reference supplied. No CPEs are listed. The provided evidence supports high impact secret exposure but not active exploitation.
Mitigation direction
Upgrade Crabbox to v0.12.0 or later.
Review vendor release notes and patch guidance for configuration changes.
Audit repo-local Crabbox configuration for broad environment allowlists.
Rotate credentials that may have been exposed to remote command environments.
Limit sensitive environment variables when running Crabbox on untrusted repositories.
Validation and detection
Inventory Crabbox versions in developer machines and automation runners.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
2CVSS vectors
3Timeline events
1ADP providers
5Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total
CVSS vector scores
2 official scores
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-94 · source CWE mapping
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.